diff --git a/changelog.md b/changelog.md
index 28b2299d..fa9396d6 100644
--- a/changelog.md
+++ b/changelog.md
@@ -6,9 +6,12 @@ Starting after v5.0.0 release, updates will be declared for schemas independentl
 and (starting with v4.0.0) this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html). Unreleased changes may be indicated under the `Unreleased` heading.
 
 ## [Unreleased](https://github.com/HumanCellAtlas/metadata-schema/tree/staging)
-
 ## [Released](https://github.com/HumanCellAtlas/metadata-schema/)
 
+### [type/project/project.json - v18.0.0] - 2024-03-04
+### Added
+Added data_use_restriction field
+
 ### [type/protocol/analysis/analysis_protocol.json - v10.2.0] - 2024-02-05
 ### Added
 Added gene_annotation_version field in analysis_protocol Fixes#1543
diff --git a/docs/jsonBrowser/required_fields.md b/docs/jsonBrowser/required_fields.md
index 8889b160..9a69dd26 100644
--- a/docs/jsonBrowser/required_fields.md
+++ b/docs/jsonBrowser/required_fields.md
@@ -147,6 +147,7 @@ Property name | Description | Type | Object reference? | User friendly name | Al
 schema_type | The type of the metadata schema entity. | string |  |  | project | 
 project_core | Core project-level information. | object | [See core  project_core](core.md#project-core) | Project core |  | 
 funders | Funding source(s) supporting the project. | array | [See module  funder](module.md#funder) | Funding source(s) |  | 
+data_use_restriction | Data use restrictions that apply to the project. | string |  | Data use restriction | NRES, GRU, GRU-NCU | GRU
 ### Specimen from organism
 Property name | Description | Type | Object reference? | User friendly name | Allowed values | Example 
 --- | --- | --- | --- | --- | --- | --- 
diff --git a/docs/jsonBrowser/type.md b/docs/jsonBrowser/type.md
index c6b8b98d..61e78cf6 100644
--- a/docs/jsonBrowser/type.md
+++ b/docs/jsonBrowser/type.md
@@ -327,6 +327,7 @@ insdc_study_accessions | An International Nucleotide Sequence Database Collabora
 biostudies_accessions | A BioStudies study accession. | array | no |  | BioStudies accession |  | S-EXMP1; S-HCAS33
 funders | Funding source(s) supporting the project. | array | yes | [See module  funder](module.md#funder) | Funding source(s) |  | 
 estimated_cell_count | An estimated number of cells in this project | integer | no |  | Estimated cell count |  | 10000; 2100000
+data_use_restriction | Data use restrictions that apply to the project. | string | yes |  | Data use restriction | NRES, GRU, GRU-NCU | GRU
 
 ## Specimen from organism
 _Information about the specimen that was collected from the donor organism._
diff --git a/json_schema/property_migrations.json b/json_schema/property_migrations.json
index 9e94837b..fbdfbdd2 100644
--- a/json_schema/property_migrations.json
+++ b/json_schema/property_migrations.json
@@ -1,5 +1,12 @@
 {
     "migrations": [
+        {
+            "source_schema": "project",
+            "property": "data_use_restriction",
+            "effective_from": "18.0.0",
+            "reason": "Data access is now recorded as a mandatory field",
+            "type": "new required property"
+        },
         {
             "source_schema": "cell_line",
             "property": "timecourse",
diff --git a/json_schema/type/project/project.json b/json_schema/type/project/project.json
index 4213b4aa..895d99c7 100644
--- a/json_schema/type/project/project.json
+++ b/json_schema/type/project/project.json
@@ -6,7 +6,8 @@
         "describedBy",
         "schema_type",
         "project_core",
-        "funders"
+        "funders",
+        "data_use_restriction"
     ],
     "title": "Project",
     "name": "project",
@@ -164,6 +165,18 @@
             "type": "integer",
             "example": "10000; 2100000",
             "user_friendly": "Estimated cell count"
+        },
+        "data_use_restriction": {
+            "description": "Data use restrictions that apply to the project.",
+            "type": "string",
+            "enum": [
+                "NRES",
+                "GRU",
+                "GRU-NCU"
+            ],
+            "user_friendly": "Data use restriction",
+            "guidelines": "Must be one of: NRES, GRU, GRU-NCU. The use restriction codes are based on the DUO ontology where NRES corresponds to DUO:0000004, GRU corresponds to DUO:0000042, GRU-NCU corresponds to a combination of DUO:0000042 and DUO:0000046",
+            "example": "GRU"
         }
     }
 }
diff --git a/json_schema/versions.json b/json_schema/versions.json
index 8f47b78e..9cc9a4d8 100644
--- a/json_schema/versions.json
+++ b/json_schema/versions.json
@@ -1,5 +1,5 @@
 {
-    "last_update_date": "2024-02-05T16:10:39Z",
+    "last_update_date": "2024-03-04T14:00:53Z",
     "version_numbers": {
         "core": {
             "biomaterial": {
@@ -110,7 +110,7 @@
                 "process": "9.2.0"
             },
             "project": {
-                "project": "17.1.1"
+                "project": "18.0.0"
             },
             "protocol": {
                 "analysis": {