diff --git a/catalyst-gateway/Cargo.lock b/catalyst-gateway/Cargo.lock
index 5c0751f8d557..1ead867a9db3 100644
--- a/catalyst-gateway/Cargo.lock
+++ b/catalyst-gateway/Cargo.lock
@@ -828,7 +828,7 @@ dependencies = [
 [[package]]
 name = "catalyst-signed-doc"
 version = "0.0.4"
-source = "git+https://github.com/input-output-hk/catalyst-libs.git?tag=cardano-chain-follower-v0.0.10#cbd70c471d73f72674e07112a4e09c84159e4e13"
+source = "git+https://github.com/input-output-hk/catalyst-libs.git?tag=catalyst-signed-doc%2Fv0.0.4-f15-rc#26b42964c3d2178b8c30e3cc1b367ef185b0ee5f"
 dependencies = [
  "anyhow",
  "brotli 7.0.0",
diff --git a/catalyst-gateway/bin/Cargo.toml b/catalyst-gateway/bin/Cargo.toml
index 37512339aa1b..0419b50f78d0 100644
--- a/catalyst-gateway/bin/Cargo.toml
+++ b/catalyst-gateway/bin/Cargo.toml
@@ -19,7 +19,7 @@ cardano-chain-follower = { version = "0.0.10", git = "https://github.com/input-o
 rbac-registration = { version = "0.0.5", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cardano-chain-follower-v0.0.10" }
 catalyst-types = { version = "0.0.4", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "r20250724-01" }
 cardano-blockchain-types = { version = "0.0.4", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "r20250724-01" }
-catalyst-signed-doc = { version = "0.0.4", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cardano-chain-follower-v0.0.10" }
+catalyst-signed-doc = { version = "0.0.4", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-signed-doc/v0.0.4-f15-rc" }
 c509-certificate = { version = "0.0.3", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "r20250724-01" }
 
 pallas = { version = "0.33.0" }
diff --git a/catalyst-gateway/bin/src/service/api/documents/common/mod.rs b/catalyst-gateway/bin/src/service/api/documents/common/mod.rs
index 1480f3166aff..a809f2697cbb 100644
--- a/catalyst-gateway/bin/src/service/api/documents/common/mod.rs
+++ b/catalyst-gateway/bin/src/service/api/documents/common/mod.rs
@@ -5,28 +5,13 @@ use std::collections::HashMap;
 
 use catalyst_signed_doc::CatalystSignedDocument;
 
-use super::templates::get_doc_static_template;
+use super::templates::get_active_doc_static_template;
 use crate::{
     db::event::{error::NotFoundError, signed_docs::FullSignedDoc},
     service::common::auth::rbac::token::CatalystRBACTokenV1,
     settings::Settings,
 };
 
-/// Get document from the database
-pub(crate) async fn get_document(
-    document_id: &uuid::Uuid,
-    version: Option<&uuid::Uuid>,
-) -> anyhow::Result<CatalystSignedDocument> {
-    // Find the doc in the static templates first
-    if let Some(doc) = get_doc_static_template(document_id) {
-        return Ok(doc);
-    }
-
-    // If doesn't exist in the static templates, try to find it in the database
-    let db_doc = FullSignedDoc::retrieve(document_id, version).await?;
-    db_doc.raw().try_into()
-}
-
 /// A struct which implements a
 /// `catalyst_signed_doc::providers::CatalystSignedDocumentProvider` trait
 pub(crate) struct DocProvider;
@@ -38,8 +23,14 @@ impl catalyst_signed_doc::providers::CatalystSignedDocumentProvider for DocProvi
     ) -> anyhow::Result<Option<CatalystSignedDocument>> {
         let id = doc_ref.id.uuid();
         let ver = doc_ref.ver.uuid();
-        match get_document(&id, Some(&ver)).await {
-            Ok(doc) => Ok(Some(doc)),
+
+        // Find the doc in the static templates first
+        if let Some(doc) = get_active_doc_static_template(&id) {
+            return Ok(Some(doc));
+        }
+
+        match FullSignedDoc::retrieve(&id, Some(&ver)).await {
+            Ok(doc) => doc.raw().try_into().map(Some),
             Err(err) if err.is::<NotFoundError>() => Ok(None),
             Err(err) => Err(err),
         }
diff --git a/catalyst-gateway/bin/src/service/api/documents/get_document.rs b/catalyst-gateway/bin/src/service/api/documents/get_document.rs
index 469634ba59d8..cb7b02c67684 100644
--- a/catalyst-gateway/bin/src/service/api/documents/get_document.rs
+++ b/catalyst-gateway/bin/src/service/api/documents/get_document.rs
@@ -2,9 +2,9 @@
 
 use poem_openapi::ApiResponse;
 
-use super::common;
+use super::templates::get_doc_static_template;
 use crate::{
-    db::event::error::NotFoundError,
+    db::event::{error::NotFoundError, signed_docs::FullSignedDoc},
     service::common::{responses::WithErrorResponses, types::payload::cbor::Cbor},
 };
 
@@ -31,13 +31,16 @@ pub(crate) async fn endpoint(
     document_id: uuid::Uuid,
     version: Option<uuid::Uuid>,
 ) -> AllResponses {
-    match common::get_document(&document_id, version.as_ref()).await {
-        Ok(doc) => {
-            match doc.try_into() {
-                Ok(doc_cbor_bytes) => Responses::Ok(Cbor(doc_cbor_bytes)).into(),
-                Err(err) => AllResponses::handle_error(&err),
-            }
-        },
+    // Find the doc in the static templates first
+    if let Some(doc) = get_doc_static_template(&document_id) {
+        return match doc.try_into() {
+            Ok(doc_cbor_bytes) => Responses::Ok(Cbor(doc_cbor_bytes)).into(),
+            Err(err) => AllResponses::handle_error(&err),
+        };
+    }
+
+    match FullSignedDoc::retrieve(&document_id, version.as_ref()).await {
+        Ok(doc) => Responses::Ok(Cbor(doc.raw().to_vec())).into(),
         Err(err) if err.is::<NotFoundError>() => Responses::NotFound.into(),
         Err(err) => AllResponses::handle_error(&err),
     }
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/f14_comment_template.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/f14_comment_template.schema.json
deleted file mode 120000
index 734955b8aa85..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/f14_comment_template.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../docs/src/architecture/08_concepts/document_templates/F14-Comments/0b8424d4-ebfd-46e3-9577-1775a69d290c.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_concept.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_concept.schema.json
deleted file mode 120000
index 7ffb2f3578d8..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_concept.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-7371-8bd3-c15811b2b063.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_developer.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_developer.schema.json
deleted file mode 120000
index 81422eec5969..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_developer.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-79c7-a222-2c3b581443a8.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_ecosystem.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_ecosystem.schema.json
deleted file mode 120000
index 74e38030559f..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_ecosystem.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-716f-a04e-f422f08a99dc.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_partner_product.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_partner_product.schema.json
deleted file mode 120000
index d246651087bf..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_partner_product.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-75b5-b4a4-5cf331cd8d1a.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_proposal_template.schema.json b/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_proposal_template.schema.json
deleted file mode 120000
index 9026619ecab0..000000000000
--- a/catalyst-gateway/bin/src/service/api/documents/templates/docs/proposal/f14_proposal_template.schema.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0ce8ab38-9258-4fbc-a62e-7faa6e58318f.schema.json
\ No newline at end of file
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/data.rs b/catalyst-gateway/bin/src/service/api/documents/templates/f14.rs
similarity index 64%
rename from catalyst-gateway/bin/src/service/api/documents/templates/data.rs
rename to catalyst-gateway/bin/src/service/api/documents/templates/f14.rs
index 5eb8e868c74e..df0e8737f859 100644
--- a/catalyst-gateway/bin/src/service/api/documents/templates/data.rs
+++ b/catalyst-gateway/bin/src/service/api/documents/templates/f14.rs
@@ -1,30 +1,34 @@
-//! Document templates hardcoded data.
+//! F14 Document templates hardcoded data.
 
 use super::SignedDocData;
 
+/// Fund 14 Campaign ID.
+const CAMPAIGN_ID: &str = "0194cfcf-15a2-7e32-b559-386b93d0724e";
+
 /// An empty JSON object bytes slice
 const EMPTY_JSON_OBJECT_BYTES: &[u8] = b"{}";
 /// A definition of Category document hardcoded data
 pub(crate) struct CategoryDocData(
     /// ID and Version
     &'static str,
+    /// Campaign ID
+    &'static str,
 );
-/// List of category documents, 12 categories for Fund 14.
-// TODO: Fix Content once it is added
+/// List of category documents, categories.
 #[rustfmt::skip]
 pub(crate) const CATEGORY_DOCUMENTS: [CategoryDocData; 12] = [
-    CategoryDocData("0194d490-30bf-7473-81c8-a0eaef369619"),
-    CategoryDocData("0194d490-30bf-7043-8c5c-f0e09f8a6d8c"),
-    CategoryDocData("0194d490-30bf-7e75-95c1-a6cf0e8086d9"),
-    CategoryDocData("0194d490-30bf-7703-a1c0-83a916b001e7"),
-    CategoryDocData("0194d490-30bf-79d1-9a0f-84943123ef38"),
-    CategoryDocData("0194d490-30bf-706d-91c6-0d4707f74cdf"),
-    CategoryDocData("0194d490-30bf-759e-b729-304306fbaa5e"),
-    CategoryDocData("0194d490-30bf-7e27-b5fd-de3133b54bf6"),
-    CategoryDocData("0194d490-30bf-7f9e-8a5d-91fb67c078f2"),
-    CategoryDocData("0194d490-30bf-7676-9658-36c0b67e656e"),
-    CategoryDocData("0194d490-30bf-7978-b031-7aa2ccc5e3fd"),
-    CategoryDocData("0194d490-30bf-7d34-bba9-8498094bd627"),
+    CategoryDocData("0194d490-30bf-7473-81c8-a0eaef369619", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7043-8c5c-f0e09f8a6d8c", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7e75-95c1-a6cf0e8086d9", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7703-a1c0-83a916b001e7", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-79d1-9a0f-84943123ef38", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-706d-91c6-0d4707f74cdf", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-759e-b729-304306fbaa5e", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7e27-b5fd-de3133b54bf6", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7f9e-8a5d-91fb67c078f2", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7676-9658-36c0b67e656e", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7978-b031-7aa2ccc5e3fd", CAMPAIGN_ID),
+    CategoryDocData("0194d490-30bf-7d34-bba9-8498094bd627", CAMPAIGN_ID),
 ];
 
 impl From<CategoryDocData> for SignedDocData {
@@ -34,7 +38,7 @@ impl From<CategoryDocData> for SignedDocData {
             ver: value.0,
             doc_type: catalyst_signed_doc::doc_types::CATEGORY_DOCUMENT_UUID_TYPE,
             content: EMPTY_JSON_OBJECT_BYTES,
-            category_id: None,
+            category_id: Some(value.1),
         }
     }
 }
@@ -49,13 +53,13 @@ pub(crate) struct ProposalTemplateDocData(
     &'static [u8],
 );
 
-/// List of proposal templates, 12 proposals each of which is uniquely associated with one of the predefined categories.
+/// List of proposal templates, proposals each of which is uniquely associated with one of the predefined categories.
 #[rustfmt::skip]
 pub(crate) const PROPOSAL_TEMPLATES: [ProposalTemplateDocData; 12] = [
-    ProposalTemplateDocData("0194d492-1daa-75b5-b4a4-5cf331cd8d1a", CATEGORY_DOCUMENTS[0].0, include_bytes!("./docs/proposal/f14_partner_product.schema.json")),
-    ProposalTemplateDocData("0194d492-1daa-7371-8bd3-c15811b2b063", CATEGORY_DOCUMENTS[1].0, include_bytes!("./docs/proposal/f14_concept.schema.json")),
-    ProposalTemplateDocData("0194d492-1daa-79c7-a222-2c3b581443a8", CATEGORY_DOCUMENTS[2].0, include_bytes!("./docs/proposal/f14_developer.schema.json")),
-    ProposalTemplateDocData("0194d492-1daa-716f-a04e-f422f08a99dc", CATEGORY_DOCUMENTS[3].0, include_bytes!("./docs/proposal/f14_ecosystem.schema.json")),
+    ProposalTemplateDocData("0194d492-1daa-75b5-b4a4-5cf331cd8d1a", CATEGORY_DOCUMENTS[0].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-75b5-b4a4-5cf331cd8d1a.schema.json")),
+    ProposalTemplateDocData("0194d492-1daa-7371-8bd3-c15811b2b063", CATEGORY_DOCUMENTS[1].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-7371-8bd3-c15811b2b063.schema.json")),
+    ProposalTemplateDocData("0194d492-1daa-79c7-a222-2c3b581443a8", CATEGORY_DOCUMENTS[2].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-79c7-a222-2c3b581443a8.schema.json")),
+    ProposalTemplateDocData("0194d492-1daa-716f-a04e-f422f08a99dc", CATEGORY_DOCUMENTS[3].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-716f-a04e-f422f08a99dc.schema.json")),
     ProposalTemplateDocData("0194d492-1daa-78fc-818a-bf20fc3e9b87", CATEGORY_DOCUMENTS[4].0, EMPTY_JSON_OBJECT_BYTES),
     ProposalTemplateDocData("0194d492-1daa-7d98-a3aa-c57d99121f78", CATEGORY_DOCUMENTS[5].0, EMPTY_JSON_OBJECT_BYTES),
     ProposalTemplateDocData("0194d492-1daa-77be-a1a5-c238fe25fe4f", CATEGORY_DOCUMENTS[6].0, EMPTY_JSON_OBJECT_BYTES),
@@ -85,7 +89,7 @@ pub(crate) struct CommentTemplateDocData(
     /// Category ID
     &'static str,
 );
-/// List of comment templates, 12 comments each of which is uniquely associated with one of the predefined categories.
+/// List of comment templates, comments each of which is uniquely associated with one of the predefined categories.
 #[rustfmt::skip]
 pub(crate) const COMMENT_TEMPLATES: [CommentTemplateDocData; 12] = [
     CommentTemplateDocData("0194d494-4402-7e0e-b8d6-171f8fea18b0", CATEGORY_DOCUMENTS[0].0),
@@ -108,7 +112,7 @@ impl From<CommentTemplateDocData> for SignedDocData {
             id: value.0,
             ver: value.0,
             doc_type: catalyst_signed_doc::doc_types::COMMENT_TEMPLATE_UUID_TYPE,
-            content: include_bytes!("./docs/f14_comment_template.schema.json"),
+            content: include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/F14-Comments/0b8424d4-ebfd-46e3-9577-1775a69d290c.schema.json"),
             category_id: Some(value.1),
         }
     }
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/f15.rs b/catalyst-gateway/bin/src/service/api/documents/templates/f15.rs
new file mode 100644
index 000000000000..c3e99e82e4cf
--- /dev/null
+++ b/catalyst-gateway/bin/src/service/api/documents/templates/f15.rs
@@ -0,0 +1,95 @@
+//! F15 Document templates hardcoded data.
+
+use super::SignedDocData;
+
+/// Fund 15 Campaign ID.
+const CAMPAIGN_ID: &str = "0199802c-21b4-7d91-986d-0e913cd81391";
+
+/// An empty JSON object bytes slice
+const EMPTY_JSON_OBJECT_BYTES: &[u8] = b"{}";
+/// A definition of Category document hardcoded data
+pub(crate) struct CategoryDocData(
+    /// ID and Version
+    &'static str,
+    /// Campaign ID
+    &'static str,
+);
+/// List of category documents.
+#[rustfmt::skip]
+pub(crate) const CATEGORY_DOCUMENTS: [CategoryDocData; 4] = [
+    CategoryDocData("0199802c-21b4-721f-aa1d-5123b006879e", CAMPAIGN_ID),
+    CategoryDocData("0199802c-21b4-7dc8-8537-7eae5ea4c4d3", CAMPAIGN_ID),
+    CategoryDocData("0199802c-21b4-7c84-873c-f55119cdc811", CAMPAIGN_ID),
+    CategoryDocData("0199802c-21b4-7161-a16e-a77af492780f", CAMPAIGN_ID),
+];
+
+impl From<CategoryDocData> for SignedDocData {
+    fn from(value: CategoryDocData) -> Self {
+        Self {
+            id: value.0,
+            ver: value.0,
+            doc_type: catalyst_signed_doc::doc_types::CATEGORY_DOCUMENT_UUID_TYPE,
+            content: EMPTY_JSON_OBJECT_BYTES,
+            category_id: Some(value.1),
+        }
+    }
+}
+
+/// A definition of Proposal Template document hardcoded data
+pub(crate) struct ProposalTemplateDocData(
+    /// ID and Version
+    &'static str,
+    /// Category ID
+    &'static str,
+    /// Content bytes
+    &'static [u8],
+);
+
+/// List of proposal templates, proposals each of which is uniquely associated with one of the predefined categories.
+#[rustfmt::skip]
+pub(crate) const PROPOSAL_TEMPLATES: [ProposalTemplateDocData; 4] = [
+    ProposalTemplateDocData("0199802c-21b4-717d-9619-11357877f471", CATEGORY_DOCUMENTS[0].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-75b5-b4a4-5cf331cd8d1a.schema.json")),
+    ProposalTemplateDocData("0199802c-21b4-7982-ba3f-ec0cd0207b11", CATEGORY_DOCUMENTS[1].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-7371-8bd3-c15811b2b063.schema.json")),
+    ProposalTemplateDocData("0199802c-21b4-7f75-b14a-331cd1605f74", CATEGORY_DOCUMENTS[2].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-79c7-a222-2c3b581443a8.schema.json")),
+    ProposalTemplateDocData("0199802c-21b4-7d6c-aacd-54aa31fe1e4c", CATEGORY_DOCUMENTS[3].0, include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/proposal/F14-Generic/0194d492-1daa-716f-a04e-f422f08a99dc.schema.json")),
+];
+
+impl From<ProposalTemplateDocData> for SignedDocData {
+    fn from(value: ProposalTemplateDocData) -> Self {
+        Self {
+            id: value.0,
+            ver: value.0,
+            doc_type: catalyst_signed_doc::doc_types::PROPOSAL_TEMPLATE_UUID_TYPE,
+            content: value.2,
+            category_id: Some(value.1),
+        }
+    }
+}
+
+/// A definition of Comment Template document hardcoded data
+pub(crate) struct CommentTemplateDocData(
+    /// ID and Version
+    &'static str,
+    /// Category ID
+    &'static str,
+);
+/// List of comment templates, comments each of which is uniquely associated with one of the predefined categories.
+#[rustfmt::skip]
+pub(crate) const COMMENT_TEMPLATES: [CommentTemplateDocData; 4] = [
+    CommentTemplateDocData("0199802c-21b4-7b2c-aafd-0af557e8408c", CATEGORY_DOCUMENTS[0].0),
+    CommentTemplateDocData("0199802c-21b4-78d8-a1df-2e4bd2e73507", CATEGORY_DOCUMENTS[1].0),
+    CommentTemplateDocData("0199802c-21b4-76da-9384-4dc1e2dc3d51", CATEGORY_DOCUMENTS[2].0),
+    CommentTemplateDocData("0199802c-21b4-7884-84cb-0bdf6c08e690", CATEGORY_DOCUMENTS[3].0),
+];
+
+impl From<CommentTemplateDocData> for SignedDocData {
+    fn from(value: CommentTemplateDocData) -> Self {
+        Self {
+            id: value.0,
+            ver: value.0,
+            doc_type: catalyst_signed_doc::doc_types::COMMENT_TEMPLATE_UUID_TYPE,
+            content: include_bytes!("../../../../../../../docs/src/architecture/08_concepts/document_templates/F14-Comments/0b8424d4-ebfd-46e3-9577-1775a69d290c.schema.json"),
+            category_id: Some(value.1),
+        }
+    }
+}
diff --git a/catalyst-gateway/bin/src/service/api/documents/templates/mod.rs b/catalyst-gateway/bin/src/service/api/documents/templates/mod.rs
index 236460a8ebc2..37daafc329f0 100644
--- a/catalyst-gateway/bin/src/service/api/documents/templates/mod.rs
+++ b/catalyst-gateway/bin/src/service/api/documents/templates/mod.rs
@@ -1,45 +1,59 @@
 //! Catalyst signed document templates.
 
-mod data;
+mod f14;
+mod f15;
 
 use std::{collections::HashMap, env, sync::LazyLock};
 
 use catalyst_signed_doc::{
     Builder, CatalystId, CatalystSignedDocument, ContentEncoding, ContentType,
 };
-use data::{CATEGORY_DOCUMENTS, COMMENT_TEMPLATES, PROPOSAL_TEMPLATES};
 use ed25519_dalek::{ed25519::signature::Signer, SigningKey};
 use hex::FromHex;
 use uuid::Uuid;
 
-/// Catalyst brand ID.
-const BRAND_ID: &str = "0194cfcd-bddc-7bb3-b5e9-455168bd3ff7";
-/// Catalyst brand Version (same as ID).
-const BRAND_VERSION: &str = BRAND_ID;
+/// A map of F14 signed document templates to its ID.
+static F14_TEMPLATES: LazyLock<Option<HashMap<Uuid, CatalystSignedDocument>>> =
+    LazyLock::new(|| {
+        let sk = load_doc_signing_key()?;
 
-/// Fund 14 Campaign ID.
-const CAMPAIGN_ID: &str = "0194cfcf-15a2-7e32-b559-386b93d0724e";
-/// Fund 14 Campaign Version (Same as ID).
-const CAMPAIGN_VERSION: &str = CAMPAIGN_ID;
+        let mut map = HashMap::new();
+        map.extend(
+            f14::CATEGORY_DOCUMENTS
+                .into_iter()
+                .map(|t| build_signed_doc(&t.into(), &sk)),
+        );
+        map.extend(
+            f14::PROPOSAL_TEMPLATES
+                .into_iter()
+                .map(|t| build_signed_doc(&t.into(), &sk)),
+        );
+        map.extend(
+            f14::COMMENT_TEMPLATES
+                .into_iter()
+                .map(|t| build_signed_doc(&t.into(), &sk)),
+        );
+        Some(map)
+    });
 
-/// A map of signed document templates to its ID.
-pub(crate) static TEMPLATES: LazyLock<Option<HashMap<Uuid, CatalystSignedDocument>>> =
+/// A map of F15 signed document templates to its ID.
+static F15_TEMPLATES: LazyLock<Option<HashMap<Uuid, CatalystSignedDocument>>> =
     LazyLock::new(|| {
         let sk = load_doc_signing_key()?;
 
         let mut map = HashMap::new();
         map.extend(
-            CATEGORY_DOCUMENTS
+            f15::CATEGORY_DOCUMENTS
                 .into_iter()
                 .map(|t| build_signed_doc(&t.into(), &sk)),
         );
         map.extend(
-            PROPOSAL_TEMPLATES
+            f15::PROPOSAL_TEMPLATES
                 .into_iter()
                 .map(|t| build_signed_doc(&t.into(), &sk)),
         );
         map.extend(
-            COMMENT_TEMPLATES
+            f15::COMMENT_TEMPLATES
                 .into_iter()
                 .map(|t| build_signed_doc(&t.into(), &sk)),
         );
@@ -105,11 +119,9 @@ fn build_signed_doc(
         "type": data.doc_type,
         "id": data.id,
         "ver": data.ver,
-        "category_id": data.category_id.map(|v| serde_json::json!({"id": v, "ver": v })),
+        "parameters": data.category_id.map(|v| serde_json::json!({"id": v, "ver": v })),
         "content-type": ContentType::Json.to_string(),
         "content-encoding": ContentEncoding::Brotli.to_string(),
-        "campaign_id": {"id": CAMPAIGN_ID, "ver": CAMPAIGN_VERSION},
-        "brand_id":  {"id": BRAND_ID, "ver": BRAND_VERSION},
     });
 
     let kid = CatalystId::new(KID_NETWORK, None, sk.verifying_key());
@@ -127,9 +139,25 @@ fn build_signed_doc(
     (doc_id, doc)
 }
 
-/// Get a static document template from ID and version.
+/// Get a static document template from ID and version looking from all available static
+/// templates.
 pub(crate) fn get_doc_static_template(document_id: &uuid::Uuid) -> Option<CatalystSignedDocument> {
-    TEMPLATES
+    F15_TEMPLATES
+        .as_ref()
+        .and_then(|templates| templates.get(document_id))
+        .or_else(|| {
+            F14_TEMPLATES
+                .as_ref()
+                .and_then(|templates| templates.get(document_id))
+        })
+        .cloned()
+}
+
+/// Get an active static document template from ID and version.
+pub(crate) fn get_active_doc_static_template(
+    document_id: &uuid::Uuid
+) -> Option<CatalystSignedDocument> {
+    F15_TEMPLATES
         .as_ref()
         .and_then(|templates| templates.get(document_id))
         .cloned()
@@ -151,7 +179,13 @@ mod tests {
         unsafe {
             env::set_var("SIGNED_DOC_SK", sk_hex);
         }
-        for doc in TEMPLATES.as_ref().unwrap().values() {
+        for doc in F14_TEMPLATES
+            .as_ref()
+            .unwrap()
+            .values()
+            .chain(F15_TEMPLATES.as_ref().unwrap().values())
+        {
+            println!("{:?}", doc.doc_meta());
             assert!(!doc.problem_report().is_problematic());
         }
     }
diff --git a/catalyst-gateway/tests/api_tests/integration/test_signed_doc.py b/catalyst-gateway/tests/api_tests/integration/test_signed_doc.py
index 92c95907ec8a..407aa5a9c070 100644
--- a/catalyst-gateway/tests/api_tests/integration/test_signed_doc.py
+++ b/catalyst-gateway/tests/api_tests/integration/test_signed_doc.py
@@ -35,8 +35,9 @@ def build_and_sign(
 
 @pytest.fixture
 def proposal_templates() -> List[str]:
-    # comes from the 'templates/data.rs' file
+    # comes from the 'templates/f14.rs' and 'templates/f15.rs' file
     return [
+        # f14
         "0194d492-1daa-75b5-b4a4-5cf331cd8d1a",
         "0194d492-1daa-7371-8bd3-c15811b2b063",
         "0194d492-1daa-79c7-a222-2c3b581443a8",
@@ -49,13 +50,19 @@ def proposal_templates() -> List[str]:
         "0194d492-1daa-7fce-84ee-b872a4661075",
         "0194d492-1daa-7878-9bcc-2c79fef0fc13",
         "0194d492-1daa-722f-94f4-687f2c068a5d",
+        # f15
+        "0199802c-21b4-717d-9619-11357877f471",
+        "0199802c-21b4-7982-ba3f-ec0cd0207b11",
+        "0199802c-21b4-7f75-b14a-331cd1605f74",
+        "0199802c-21b4-7d6c-aacd-54aa31fe1e4c",
     ]
 
 
 @pytest.fixture
 def comment_templates() -> List[str]:
-    # comes from the 'templates/data.rs' file
+    # comes from the 'templates/f14.rs' and 'templates/f15.rs' file
     return [
+        # f14
         "0194d494-4402-7e0e-b8d6-171f8fea18b0",
         "0194d494-4402-7444-9058-9030815eb029",
         "0194d494-4402-7351-b4f7-24938dc2c12e",
@@ -68,6 +75,11 @@ def comment_templates() -> List[str]:
         "0194d494-4402-7202-8ebb-8c4c47c286d8",
         "0194d494-4402-7fb5-b680-c23fe4beb088",
         "0194d494-4402-7aa5-9dbc-5fe886e60ebc",
+        # f15
+        "0199802c-21b4-7b2c-aafd-0af557e8408c",
+        "0199802c-21b4-78d8-a1df-2e4bd2e73507",
+        "0199802c-21b4-76da-9384-4dc1e2dc3d51",
+        "0199802c-21b4-7884-84cb-0bdf6c08e690",
     ]
 
 
@@ -78,7 +90,6 @@ def __proposal_doc_factory() -> tuple[SignedDocument, RoleID]:
         role_id = RoleID.PROPOSER
         rbac_chain = rbac_chain_factory()
         proposal_doc_id = uuid_v7.uuid_v7()
-        category_id = "0194d490-30bf-7473-81c8-a0eaef369619"
         proposal_metadata_json = {
             "id": proposal_doc_id,
             "ver": proposal_doc_id,
@@ -86,15 +97,14 @@ def __proposal_doc_factory() -> tuple[SignedDocument, RoleID]:
             "type": "7808d2ba-d511-40af-84e8-c0d1625fdfdc",
             "content-type": "application/json",
             "content-encoding": "br",
-            # referenced to the defined proposal template id, comes from the 'templates/data.rs' file
             "template": {
-                "id": proposal_templates[0],
-                "ver": proposal_templates[0],
+                "id": proposal_templates[12],
+                "ver": proposal_templates[12],
             },
-            # referenced to the defined category id, comes from the 'templates/data.rs' file
             "parameters": {
-                "id": category_id,
-                "ver": category_id,
+                # corresponding category ref, in accordance with the proposal template
+                "id": "0199802c-21b4-721f-aa1d-5123b006879e",
+                "ver": "0199802c-21b4-721f-aa1d-5123b006879e",
             },
         }
         with open("./test_data/signed_docs/proposal.json", "r") as proposal_json_file:
@@ -135,8 +145,13 @@ def __comment_doc_factory() -> tuple[SignedDocument, RoleID]:
                 "ver": proposal_doc.metadata["ver"],
             },
             "template": {
-                "id": comment_templates[0],
-                "ver": comment_templates[0],
+                "id": comment_templates[12],
+                "ver": comment_templates[12],
+            },
+            "parameters": {
+                # corresponding category ref, in accordance with the comment template
+                "id": "0199802c-21b4-721f-aa1d-5123b006879e",
+                "ver": "0199802c-21b4-721f-aa1d-5123b006879e",
             },
         }
         with open("./test_data/signed_docs/comment.json", "r") as comment_json_file:
@@ -176,6 +191,11 @@ def __submission_action_factory() -> tuple[SignedDocument, RoleID]:
                 "id": proposal_doc.metadata["id"],
                 "ver": proposal_doc.metadata["ver"],
             },
+            "parameters": {
+                # corresponding category ref, in accordance with proposal doc
+                "id": "0199802c-21b4-721f-aa1d-5123b006879e",
+                "ver": "0199802c-21b4-721f-aa1d-5123b006879e",
+            },
         }
         with open(
             "./test_data/signed_docs/submission_action.json", "r"