diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/ParkerEtAl_2020.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/ParkerEtAl_2020.java
index 5d8eb2a70b5d9d3d27efdc69a2a4448387cb89a3..8b289b6a4953b9cd98d698c70a14c04a60713c9a 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/ParkerEtAl_2020.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/ParkerEtAl_2020.java
@@ -37,7 +37,10 @@ import gov.usgs.earthquake.nshmp.tree.LogicTree;
  * <ul><li>Model currently uses {@code zTor} for intraslab depth scaling but
  * authors recommend {@code zHyp}.
  *
- * <ul><li>The basin depth scaling model is that developed for Cascadia.</ul>
+ * <li>The basin depth scaling model is that developed for Cascadia.
+ *
+ * <li>Implementations are provided for the global model as well as Cascadia and
+ * Alaska regionalized models.</ul>
  *
  * <p><b>Note:</b> Direct instantiation of {@code GroundMotionModel}s is
  * prohibited. Use {@link Gmm#instance(Imt)} to retrieve an instance for a
@@ -60,21 +63,6 @@ import gov.usgs.earthquake.nshmp.tree.LogicTree;
 
 public abstract class ParkerEtAl_2020 implements GroundMotionModel {
 
-  static final String NAME = "Parker et al. (2020)";
-
-  static final Constraints CONSTRAINTS_INTERFACE = Constraints.builder()
-      .set(MW, Range.closed(4.5, 9.5))
-      .set(RRUP, Range.closed(20.0, 1000.0))
-      .set(ZTOR, Range.closed(0.0, 40.0)) // should be ZHYP
-      .set(VS30, Range.closed(150.0, 2000.0))
-      .build();
-  static final Constraints CONSTRAINTS_SLAB = Constraints.builder()
-      .set(MW, Range.closed(4.5, 8.5))
-      .set(RRUP, Range.closed(35.0, 1000.0))
-      .set(ZTOR, Range.closed(0.0, 200.0))
-      .set(VS30, Range.closed(150.0, 2000.0))
-      .build();
-
   /*
    * Developer notes:
    *
@@ -93,6 +81,22 @@ public abstract class ParkerEtAl_2020 implements GroundMotionModel {
    * ground motions).
    */
 
+  static final String NAME = "Parker et al. (2020)";
+
+  static final Constraints CONSTRAINTS_INTERFACE = Constraints.builder()
+      .set(MW, Range.closed(4.5, 9.5))
+      .set(RRUP, Range.closed(20.0, 1000.0))
+      .set(ZTOR, Range.closed(0.0, 40.0)) // should be ZHYP
+      .set(VS30, Range.closed(150.0, 2000.0))
+      .build();
+
+  static final Constraints CONSTRAINTS_SLAB = Constraints.builder()
+      .set(MW, Range.closed(4.5, 8.5))
+      .set(RRUP, Range.closed(35.0, 1000.0))
+      .set(ZTOR, Range.closed(0.0, 200.0))
+      .set(VS30, Range.closed(150.0, 2000.0))
+      .build();
+
   static final CoefficientContainer COEFFS_INTERFACE;
   static final CoefficientContainer COEFFS_SLAB;