diff --git a/wasm-port/docs/compatibility-validation.md b/wasm-port/docs/compatibility-validation.md
index b61ff04..e24ef72 100644
--- a/wasm-port/docs/compatibility-validation.md
+++ b/wasm-port/docs/compatibility-validation.md
@@ -111,10 +111,11 @@ The current fixture expectations validate standalone behavior against both the
 vendored LinuxCNC source path and an upstream `rs274` side-by-side baseline for
 parser/conversion, offsets, feed-control, comment/logging, numbered-parameter,
 spindle-orient, file-open reset, file-finish, tool-reload, and O-word
-subroutine fixtures, plus threading/rigid tap and the comparable canonical
-runtime edge calls. Fixtures that depend on standalone-only runtime adapters,
-HAL/INI/tool table setup, upstream `rs274` output gaps such as `WAIT`, or
-richer machine session state still need dedicated native LinuxCNC baselines.
+subroutine fixtures, plus threading/rigid tap, NURBS dispatch boundaries, and
+the comparable canonical runtime edge calls. Fixtures that depend on
+standalone-only runtime adapters, HAL/INI/tool table setup, upstream `rs274`
+output gaps such as `WAIT` or hidden NURBS control-point detail, or richer
+machine session state still need dedicated native LinuxCNC baselines.
 
 The kinematics probes currently cover LinuxCNC identity/trivial kinematics,
 the switchable `5axiskins` XYZBCW bridge-mill model, and the TRT `xyzac`/`xyzbc`
diff --git a/wasm-port/docs/drift-report.md b/wasm-port/docs/drift-report.md
index bf0b2c5..bd23aab 100644
--- a/wasm-port/docs/drift-report.md
+++ b/wasm-port/docs/drift-report.md
@@ -69,9 +69,10 @@ semantic rewrites:
   path. The upstream `rs274` side-by-side baseline now covers simple motion,
   offsets, feed-control, comment/logging, numbered-parameter, spindle-orient,
   file-open reset, file-finish, tool-reload, and O-word subroutine fixtures;
-  it also covers threading/rigid tap and comparable canonical runtime edge
-  calls. Adapter-heavy fixtures and upstream `rs274` output gaps such as
-  `WAIT` still need dedicated native LinuxCNC baselines.
+  it also covers threading/rigid tap, NURBS dispatch boundaries, and comparable
+  canonical runtime edge calls. Adapter-heavy fixtures and upstream `rs274`
+  output gaps such as `WAIT` or hidden NURBS control-point detail still need
+  dedicated native LinuxCNC baselines.
 
 ## Current Drift Conclusion
 
diff --git a/wasm-port/docs/porting-steps-standalone.md b/wasm-port/docs/porting-steps-standalone.md
index 53b1b28..86f6e0d 100644
--- a/wasm-port/docs/porting-steps-standalone.md
+++ b/wasm-port/docs/porting-steps-standalone.md
@@ -507,10 +507,11 @@ Current verified progress:
   native LinuxCNC canonical output for simple motion, offsets, feed-control,
   comment/logging, numbered-parameter, spindle-orient, file-finish, and
   tool-reload fixtures. It now also includes file-open reset and O-word
-  subroutine fixture coverage, threading/rigid tap coverage, plus comparable
-  canonical runtime edge calls. Native output is filtered to the event classes
-  each standalone fixture explicitly expects, while upstream `rs274` output
-  gaps such as `WAIT` remain covered by the standalone harness rather than
+  subroutine fixture coverage, threading/rigid tap coverage, NURBS dispatch
+  boundary coverage, plus comparable canonical runtime edge calls. Native
+  output is filtered to the event classes each standalone fixture explicitly
+  expects, while upstream `rs274` output gaps such as `WAIT` and hidden NURBS
+  control-point detail remain covered by the standalone harness rather than
   being treated as side-by-side evidence. The comparison does not introduce a
   project-authored CNC semantics oracle.
 - `tests/fixtures/gcode_errors/g1_zero_feed.ngc` and
diff --git a/wasm-port/tools/verify_native_linuxcnc_fixture_baseline.sh b/wasm-port/tools/verify_native_linuxcnc_fixture_baseline.sh
index 335a4e5..bc80cfd 100755
--- a/wasm-port/tools/verify_native_linuxcnc_fixture_baseline.sh
+++ b/wasm-port/tools/verify_native_linuxcnc_fixture_baseline.sh
@@ -19,6 +19,8 @@ FIXTURES=(
   plane_selection
   modal_incremental
   numbered_params
+  nurbs_g5_semantics
+  nurbs_g6_semantics
   oword_subroutine
   percent_file_finish
   position_params
@@ -75,6 +77,16 @@ normalize_standalone_events() {
         next
       }
 
+      if (line ~ /^NURBS_G5_FEED /) {
+        print "NURBS_G5_FEED"
+        next
+      }
+
+      if (line ~ /^NURBS_G6_FEED /) {
+        print "NURBS_G6_FEED"
+        next
+      }
+
       if (line == "MIST_ON" || line == "MIST_OFF" || line == "FLOOD_ON" || line == "FLOOD_OFF" ||
           line == "ENABLE_FEED_OVERRIDE" || line == "DISABLE_FEED_OVERRIDE" ||
           line == "DISABLE_ADAPTIVE_FEED" || line == "ENABLE_ADAPTIVE_FEED" ||
@@ -366,6 +378,11 @@ normalize_upstream_rs274_output() {
         next
       }
 
+      if (line ~ /^NURBS_G5_FEED\(/) {
+        print "NURBS_G5_FEED"
+        next
+      }
+
       if (line ~ /^COMMENT\("/) {
         value = args_of(line)
         sub(/^"/, "", value)
@@ -585,6 +602,11 @@ normalize_upstream_rs274_output() {
         next
       }
     }
+
+    /^N\.\.\.\.\. saicanon NURBS_G6_FEED_/ && seen_reset {
+      print "NURBS_G6_FEED"
+      next
+    }
   '
 }