diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a32fda2..ff19d3ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [PEP 440](https://www.python.org/dev/peps/pep-0440/)
 and uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [0.13.5]
+
+### Added
+* Clear references to limitations for users from restricted countries
+
+### Changed 
+* Corrected broken link on the [Using HyP3](docs/using.md) page
+
 ## [0.13.4]
 
 ### Added
diff --git a/docs/about/hyp3_plus.md b/docs/about/hyp3_plus.md
index 046f4c57..225f81c9 100644
--- a/docs/about/hyp3_plus.md
+++ b/docs/about/hyp3_plus.md
@@ -13,6 +13,12 @@ and users access their purchased credits by logging in with the same
 [Earthdata Login Credentials](../using/authentication.md#earthdata-login-edl "Earthdata Login Documentation")
 used for ordering free On Demand products from HyP3 Basic.
 
+**ASF is unable to provide HyP3+ access to 
+[designated countries](https://www.nasa.gov/wp-content/uploads/2026/03/designated-country-list-3-18-2026.pdf?emrc=44fa68 "NASA's Designated Countries List" ){target=_blank}**, 
+including China, Iran, North Korea, Russia, and Taiwan, due to Export Control restrictions. Refer to the 
+[HyP3+ Terms of Service](../about/hyp3_plus_terms.md#13-export-control-laws-and-sanctions-compliance "HyP3+ Terms of Service: Export Control Laws and Sanctions Compliance") 
+for more information.
+
 ## Vertex+
 
 [Vertex+](https://vertex-plus.asf.alaska.edu/ "https://vertex-plus.asf.alaska.edu" ){target=_blank} 
@@ -30,7 +36,7 @@ including Vertex and the HyP3 Python SDK, are built upon the
 [HyP3 API](../using/api.md "Using HyP3 API Documentation"). 
 
 HyP3+ has a different API Endpoint than the standard HyP3 Basic deployment, so HyP3+ users will interact with the 
-following API URL:  
+following API URL: 
 <https://hyp3-plus.asf.alaska.edu>
 
 Users can interact with HyP3+ using the same methods as HyP3 Basic, but will need to change the API URL. 
diff --git a/docs/using-snippet.md b/docs/using-snippet.md
index da197db7..f6b7f803 100644
--- a/docs/using-snippet.md
+++ b/docs/using-snippet.md
@@ -29,7 +29,7 @@ about the resulting [On Demand products](products.md "Products Documentation").
 ### Web Access 
 
 ASF's Data Search [Vertex](using/vertex.md "Using Vertex Documentation") portal provides a rich interface to explore Sentinel-1
-acquisitions and find images to submit for [HyP3 Basic](about/hyp3_basic "HyP3 Basic Documentation") 
+acquisitions and find images to submit for [HyP3 Basic](about/hyp3_basic.md "HyP3 Basic Documentation") 
 On Demand processing. It also provides tools for selecting pairs and stacks for InSAR analysis.
 
 The [Vertex+](using/vertex.md#vertex_1 "Vertex Deployments Documentation") 
diff --git a/docs/using/vertex.md b/docs/using/vertex.md
index ce997889..7514e31b 100644
--- a/docs/using/vertex.md
+++ b/docs/using/vertex.md
@@ -42,6 +42,12 @@ which is optimized for use with the [HyP3+](../about/hyp3_plus.md "HyP3+ Documen
 
 [![Vertex_Plus_Image](../images/vertex-plus.png "Click to open Vertex+ in a new tab")](https://vertex-plus.asf.alaska.edu/ "https://vertex-plus.asf.alaska.edu" ){target=_blank}
 
+Note that ASF is unable to provide HyP3+ access to users from 
+[designated countries](https://www.nasa.gov/wp-content/uploads/2026/03/designated-country-list-3-18-2026.pdf?emrc=44fa68 "NASA's Designated Countries List" ){target=_blank}, 
+including China, Iran, North Korea, Russia, and Taiwan, due to Export Control restrictions. Refer to the 
+[HyP3+ Terms of Service](../about/hyp3_plus_terms.md#13-export-control-laws-and-sanctions-compliance "HyP3+ Terms of Service: Export Control Laws and Sanctions Compliance") 
+for more information.
+
 ## Getting Started
 
 In either version of Vertex, you will need to 
@@ -137,9 +143,9 @@ To change the HyP3 API URL in Vertex or Vertex+:
 
 1. Click on your username icon and select **Preferences**.
    ![Open Vertex Preferences](../images/vertex-preferences.png "Open Vertex Preferences")
-2. Enter your desired HyP3 API URL in the **HyP3 API URL** field.
+2. Enter your desired HyP3 API URL in the **HyP3 API URL** field. URLs entered here will be available 
+   as a drop-down menu item for future use.
    ![Set API for Vertex](../images/vertex-set-api.png "Set API URL in Vertex Preferences")
        - HyP3 Basic: <https://hyp3-api.asf.alaska.edu>{target=_blank}
        - HyP3+: <https://hyp3-plus.asf.alaska.edu>{target=_blank}
-       - URLs that are entered in this field will be available as a drop-down menu item for future use.
 3. Click **Done** to exit the Preferences page.