diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/CombinedGmm.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/CombinedGmm.java
index 14415cb4c149f9b1d57c6001e148bfff1a62af76..12780172539e77c513510785f2fe12969d2d6c91 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/CombinedGmm.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/CombinedGmm.java
@@ -155,8 +155,8 @@ class CombinedGmm implements GroundMotionModel {
   static final class Ceus2018 extends CombinedGmm {
 
     static final String NAME = CombinedGmm.NAME + "CEUS 2018 (5.0)";
-    static final Constraints CONSTRAINTS = NgaEastUsgs_2017.CONSTRAINTS;
-    static final CoefficientContainer COEFFS = NgaEastUsgs_2017.COEFFS_SIGMA_PANEL;
+    static final Constraints CONSTRAINTS = NgaEast_2018.CONSTRAINTS;
+    static final CoefficientContainer COEFFS = NgaEast_2018.COEFFS_SIGMA_PANEL;
 
     Ceus2018(Imt imt) {
       super(imt, CEUS_2018);
@@ -171,8 +171,8 @@ class CombinedGmm implements GroundMotionModel {
   static final class Ceus2018Cpa extends CombinedGmm {
 
     static final String NAME = CombinedGmm.NAME + "CEUS 2018 (Gulf Coast)";
-    static final Constraints CONSTRAINTS = NgaEastUsgs_2017.CONSTRAINTS;
-    static final CoefficientContainer COEFFS = NgaEastUsgs_2017.COEFFS_SIGMA_PANEL;
+    static final Constraints CONSTRAINTS = NgaEast_2018.CONSTRAINTS;
+    static final CoefficientContainer COEFFS = NgaEast_2018.COEFFS_SIGMA_PANEL;
 
     Ceus2018Cpa(Imt imt) {
       super(imt, CEUS_2018_CPA);
diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/Gmm.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/Gmm.java
index 4a90b6d304e322fbe7754808d98d145cdd923b5d..1622886215827e87f23ffbbcde635be4f9ed93f6 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/Gmm.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/Gmm.java
@@ -854,189 +854,189 @@ public enum Gmm {
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_USGS(
-      NgaEastUsgs_2017.Usgs17.class,
-      NgaEastUsgs_2017.Usgs17.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Usgs17.class,
+      NgaEast_2018.Usgs17.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** NGA-East for USGS with Guo & Chapman Gulf CPA **/
   NGA_EAST_USGS_CPA(
-      NgaEastUsgs_2017.Usgs17Cpa.class,
-      NgaEastUsgs_2017.Usgs17Cpa.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Usgs17Cpa.class,
+      NgaEast_2018.Usgs17Cpa.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /* NGA-East USGS Seed Tree */
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_USGS_SEEDS(
-      NgaEastUsgs_2017.UsgsSeeds.class,
-      NgaEastUsgs_2017.UsgsSeeds.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.UsgsSeeds.class,
+      NgaEast_2018.UsgsSeeds.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** NGA-East for USGS Seed Models with Guo & Chapman Gulf CPA **/
   NGA_EAST_USGS_SEEDS_CPA(
-      NgaEastUsgs_2017.UsgsSeedsCpa.class,
-      NgaEastUsgs_2017.UsgsSeedsCpa.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.UsgsSeedsCpa.class,
+      NgaEast_2018.UsgsSeedsCpa.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /* NGA-East Seed Models */
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_1CCSP(
-      NgaEastUsgs_2017.Seed_1CCSP.class,
-      NgaEastUsgs_2017.Seed_1CCSP.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_1CCSP.class,
+      NgaEast_2018.Seed_1CCSP.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_1CVSP(
-      NgaEastUsgs_2017.Seed_1CVSP.class,
-      NgaEastUsgs_2017.Seed_1CVSP.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_1CVSP.class,
+      NgaEast_2018.Seed_1CVSP.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_2CCSP(
-      NgaEastUsgs_2017.Seed_2CCSP.class,
-      NgaEastUsgs_2017.Seed_2CCSP.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_2CCSP.class,
+      NgaEast_2018.Seed_2CCSP.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_2CVSP(
-      NgaEastUsgs_2017.Seed_2CVSP.class,
-      NgaEastUsgs_2017.Seed_2CVSP.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_2CVSP.class,
+      NgaEast_2018.Seed_2CVSP.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_A04(
-      NgaEastUsgs_2017.Seed_B_a04.class,
-      NgaEastUsgs_2017.Seed_B_a04.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_a04.class,
+      NgaEast_2018.Seed_B_a04.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_AB14(
-      NgaEastUsgs_2017.Seed_B_ab14.class,
-      NgaEastUsgs_2017.Seed_B_ab14.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_ab14.class,
+      NgaEast_2018.Seed_B_ab14.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_AB95(
-      NgaEastUsgs_2017.Seed_B_ab95.class,
-      NgaEastUsgs_2017.Seed_B_ab95.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_ab95.class,
+      NgaEast_2018.Seed_B_ab95.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_BCA10D(
-      NgaEastUsgs_2017.Seed_B_bca10d.class,
-      NgaEastUsgs_2017.Seed_B_bca10d.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_bca10d.class,
+      NgaEast_2018.Seed_B_bca10d.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_BS11(
-      NgaEastUsgs_2017.Seed_B_bs11.class,
-      NgaEastUsgs_2017.Seed_B_bs11.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_bs11.class,
+      NgaEast_2018.Seed_B_bs11.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B_SGD02(
-      NgaEastUsgs_2017.Seed_B_sgd02.class,
-      NgaEastUsgs_2017.Seed_B_sgd02.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B_sgd02.class,
+      NgaEast_2018.Seed_B_sgd02.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B20_AB14MOD1(
-      NgaEastUsgs_2017.Seed_B20_ab14mod1.class,
-      NgaEastUsgs_2017.Seed_B20_ab14mod1.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B20_ab14mod1.class,
+      NgaEast_2018.Seed_B20_ab14mod1.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B20_AB14MOD2(
-      NgaEastUsgs_2017.Seed_B20_ab14mod2.class,
-      NgaEastUsgs_2017.Seed_B20_ab14mod2.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B20_ab14mod2.class,
+      NgaEast_2018.Seed_B20_ab14mod2.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_B20_BCA10D(
-      NgaEastUsgs_2017.Seed_B20_bca10d.class,
-      NgaEastUsgs_2017.Seed_B20_bca10d.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_B20_bca10d.class,
+      NgaEast_2018.Seed_B20_bca10d.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_FRANKEL(
-      NgaEastUsgs_2017.Seed_Frankel.class,
-      NgaEastUsgs_2017.Seed_Frankel.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_Frankel.class,
+      NgaEast_2018.Seed_Frankel.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_GRAIZER(
-      NgaEastUsgs_2017.Seed_Graizer.class,
-      NgaEastUsgs_2017.Seed_Graizer.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_Graizer.class,
+      NgaEast_2018.Seed_Graizer.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_GRAIZER16(
-      NgaEastUsgs_2017.Seed_Graizer16.class,
-      NgaEastUsgs_2017.Seed_Graizer16.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_Graizer16.class,
+      NgaEast_2018.Seed_Graizer16.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_GRAIZER17(
-      NgaEastUsgs_2017.Seed_Graizer17.class,
-      NgaEastUsgs_2017.Seed_Graizer17.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_Graizer17.class,
+      NgaEast_2018.Seed_Graizer17.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_HA15(
-      NgaEastUsgs_2017.Seed_HA15.class,
-      NgaEastUsgs_2017.Seed_HA15.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_HA15.class,
+      NgaEast_2018.Seed_HA15.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_PEER_EX(
-      NgaEastUsgs_2017.Seed_PEER_EX.class,
-      NgaEastUsgs_2017.Seed_PEER_EX.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_PEER_EX.class,
+      NgaEast_2018.Seed_PEER_EX.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_PEER_GP(
-      NgaEastUsgs_2017.Seed_PEER_GP.class,
-      NgaEastUsgs_2017.Seed_PEER_GP.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_PEER_GP.class,
+      NgaEast_2018.Seed_PEER_GP.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_PZCT15_M1SS(
-      NgaEastUsgs_2017.Seed_PZCT15_M1SS.class,
-      NgaEastUsgs_2017.Seed_PZCT15_M1SS.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_PZCT15_M1SS.class,
+      NgaEast_2018.Seed_PZCT15_M1SS.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_PZCT15_M2ES(
-      NgaEastUsgs_2017.Seed_PZCT15_M2ES.class,
-      NgaEastUsgs_2017.Seed_PZCT15_M2ES.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_PZCT15_M2ES.class,
+      NgaEast_2018.Seed_PZCT15_M2ES.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see PezeshkEtAl_2018 */
   NGA_EAST_SEED_PZCT18_M1SS(
@@ -1054,10 +1054,10 @@ public enum Gmm {
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_SP15(
-      NgaEastUsgs_2017.Seed_SP15.class,
-      NgaEastUsgs_2017.Seed_SP15.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_SP15.class,
+      NgaEast_2018.Seed_SP15.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /** @see NgaEastUsgs_2017 @see ShahjoueiPezeshk_2016 */
   NGA_EAST_SEED_SP16(
@@ -1068,10 +1068,10 @@ public enum Gmm {
 
   /** @see NgaEastUsgs_2017 */
   NGA_EAST_SEED_YA15(
-      NgaEastUsgs_2017.Seed_YA15.class,
-      NgaEastUsgs_2017.Seed_YA15.NAME,
-      NgaEastUsgs_2017.COEFFS_SIGMA_PANEL,
-      NgaEastUsgs_2017.CONSTRAINTS),
+      NgaEast_2018.Seed_YA15.class,
+      NgaEast_2018.Seed_YA15.NAME,
+      NgaEast_2018.COEFFS_SIGMA_PANEL,
+      NgaEast_2018.CONSTRAINTS),
 
   /* Combined: must be declared after any dependent models above. */
 
diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEastUsgs_2017.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEast_2018.java
similarity index 98%
rename from src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEastUsgs_2017.java
rename to src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEast_2018.java
index e25ad0cd7daaf40da15f6cd6a349bf069a07a1f1..847c04b9998d7ed3bbfd4e9c07528bc3b61f99c8 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEastUsgs_2017.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEast_2018.java
@@ -127,7 +127,7 @@ import gov.usgs.earthquake.nshmp.tree.LogicTree;
  * @see Gmm#NGA_EAST_SEED_YA15
  */
 @Beta
-public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
+public abstract class NgaEast_2018 implements GroundMotionModel {
 
   /*
    * Developer notes:
@@ -259,7 +259,7 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
   private final CoefficientsSigmaEpri σCoeffsEpri;
   final Imt imt;
 
-  NgaEastUsgs_2017(Imt imt) {
+  NgaEast_2018(Imt imt) {
     σCoeffsPanel = new CoefficientsSigmaPanel(imt, COEFFS_SIGMA_PANEL);
     σCoeffsEpri = new CoefficientsSigmaEpri(imt, COEFFS_SIGMA_EPRI);
     this.imt = imt;
@@ -363,7 +363,7 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
    * Base model used for sammons and seed model groups that share common site
    * class and sigma models.
    */
-  static class Usgs17 extends NgaEastUsgs_2017 {
+  static class Usgs17 extends NgaEast_2018 {
 
     static final int MODEL_COUNT = 17;
     static final String[] MEAN_IDS = IntStream.range(1, MODEL_COUNT + 1)
@@ -408,7 +408,7 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
   static class Usgs17Cpa extends Usgs17 {
 
     // static final String NAME = "NGA-East (2023)";
-    static final String NAME = NgaEastUsgs_2017.NAME + " (Gulf Coast)";
+    static final String NAME = NgaEast_2018.NAME + " (Gulf Coast)";
 
     Usgs17Cpa(Imt imt) {
       super(imt);
@@ -446,7 +446,7 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
    * individual seed models which results in repeated position lookups. Both
    * sigma models considered include coefficients for PGV.
    */
-  static class UsgsSeeds extends NgaEastUsgs_2017 {
+  static class UsgsSeeds extends NgaEast_2018 {
     static final String NAME = "NGA-East Seed Tree (2018)";
     static final String SEED_PREFIX = "NGA_EAST_SEED_";
     static final String SP16_ID = "SP16";
@@ -575,8 +575,8 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
     }
   }
 
-  static abstract class Seed extends NgaEastUsgs_2017 {
-    static final String NAME = NgaEastUsgs_2017.NAME + " : Seed : ";
+  static abstract class Seed extends NgaEast_2018 {
+    static final String NAME = NgaEast_2018.NAME + " : Seed : ";
 
     final String id;
     final GroundMotionTable table;
@@ -840,7 +840,7 @@ public abstract class NgaEastUsgs_2017 implements GroundMotionModel {
    */
   static final class SiteAmp {
 
-    static final String NAME = NgaEastUsgs_2017.NAME + " : Site Amplification";
+    static final String NAME = NgaEast_2018.NAME + " : Site Amplification";
 
     private static final CoefficientContainer COEFFS = new CoefficientContainer(
         "nga-east-usgs-siteamp.csv");
diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/PezeshkEtAl_2018.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/PezeshkEtAl_2018.java
index cd9776b2f1e165572ee9b999f7eccd9145265bd1..a6b0d17129e01961778b5dcdcb89569910e1af78 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/PezeshkEtAl_2018.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/PezeshkEtAl_2018.java
@@ -19,7 +19,7 @@ import com.google.common.annotations.Beta;
 import com.google.common.collect.Range;
 
 import gov.usgs.earthquake.nshmp.gmm.GmmInput.Constraints;
-import gov.usgs.earthquake.nshmp.gmm.NgaEastUsgs_2017.SiteAmp;
+import gov.usgs.earthquake.nshmp.gmm.NgaEast_2018.SiteAmp;
 import gov.usgs.earthquake.nshmp.tree.LogicTree;
 
 /**
@@ -157,7 +157,7 @@ public abstract class PezeshkEtAl_2018 implements GroundMotionModel {
     CoefficientContainer cc = (model == Model.M1SS) ? COEFFS_M1SS : COEFFS_M2ES;
     coeffs = new Coefficients(imt, cc, COEFFS_SIGMAS, model);
     coeffsPga = new Coefficients(Imt.PGA, cc, COEFFS_SIGMAS, model);
-    this.siteAmp = new NgaEastUsgs_2017.SiteAmp(imt);
+    this.siteAmp = new NgaEast_2018.SiteAmp(imt);
   }
 
   @Override
@@ -209,7 +209,7 @@ public abstract class PezeshkEtAl_2018 implements GroundMotionModel {
 
   static final class Seed_PZCT18_M1SS extends PezeshkEtAl_2018 {
     static final String MODEL = Model.M1SS;
-    static final String NAME = NgaEastUsgs_2017.Seed.NAME + " : " + MODEL + "*";
+    static final String NAME = NgaEast_2018.Seed.NAME + " : " + MODEL + "*";
 
     Seed_PZCT18_M1SS(Imt imt) {
       super(imt, MODEL);
@@ -218,7 +218,7 @@ public abstract class PezeshkEtAl_2018 implements GroundMotionModel {
 
   static final class Seed_PZCT18_M2ES extends PezeshkEtAl_2018 {
     static final String MODEL = Model.M2ES;
-    static final String NAME = NgaEastUsgs_2017.Seed.NAME + " : " + MODEL + "*";
+    static final String NAME = NgaEast_2018.Seed.NAME + " : " + MODEL + "*";
 
     Seed_PZCT18_M2ES(Imt imt) {
       super(imt, MODEL);
diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/ShahjoueiPezeshk_2016.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/ShahjoueiPezeshk_2016.java
index 877204212aae14ae97f1a488bb75e2d9680d08ad..1232ce60a7dcd336bb87ebaab6e65068108f730e 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/ShahjoueiPezeshk_2016.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/ShahjoueiPezeshk_2016.java
@@ -15,7 +15,7 @@ import java.util.Map;
 import com.google.common.collect.Range;
 
 import gov.usgs.earthquake.nshmp.gmm.GmmInput.Constraints;
-import gov.usgs.earthquake.nshmp.gmm.NgaEastUsgs_2017.SiteAmp;
+import gov.usgs.earthquake.nshmp.gmm.NgaEast_2018.SiteAmp;
 import gov.usgs.earthquake.nshmp.tree.LogicTree;
 
 /**
@@ -53,7 +53,7 @@ public final class ShahjoueiPezeshk_2016 implements GroundMotionModel {
    * the sigma provided by this model is ignored in favor of the NGA-East sigma
    * logic tree when used with the seed model logic tree.
    */
-  static final String NAME = NgaEastUsgs_2017.Seed.NAME + "SP16áµ€*";
+  static final String NAME = NgaEast_2018.Seed.NAME + "SP16áµ€*";
 
   static final Constraints CONSTRAINTS = Constraints.builder()
       .set(MW, Range.closed(4.0, 8.0))
@@ -99,7 +99,7 @@ public final class ShahjoueiPezeshk_2016 implements GroundMotionModel {
   ShahjoueiPezeshk_2016(Imt imt) {
     this.coeffs = new Coefficients(imt, COEFFS);
     this.coeffsPga = new Coefficients(Imt.PGA, COEFFS);
-    this.siteAmp = new NgaEastUsgs_2017.SiteAmp(imt);
+    this.siteAmp = new NgaEast_2018.SiteAmp(imt);
   }
 
   @Override