diff --git a/nulib/lib_provisioning/cmd/env.nu b/nulib/lib_provisioning/cmd/env.nu
index ec6d9cf..e5f99b4 100644
--- a/nulib/lib_provisioning/cmd/env.nu
+++ b/nulib/lib_provisioning/cmd/env.nu
@@ -1,12 +1,9 @@
 
-export-env {
-  use ../config/accessor.nu *
-  use ../utils/logging.nu [is-debug-enabled]
-  use ./lib.nu check_env
-  check_env
-  $env.PROVISIONING_DEBUG = if (is-debug-enabled) {
-    true
-  } else {
-    false
-  }
-}
+# export-env block removed by ADR-025 Phase 3 blocker 4.
+# The former block called check_env (a pre-flight gate) and set $env.PROVISIONING_DEBUG.
+# Nobody imports cmd/env.nu directly; it was only reached via the star-import chain
+# from lib_provisioning/mod.nu. With that chain being emptied, this block would
+# never fire at CLI start anyway. Thin handlers that need the debug flag already
+# set it explicitly via `if $debug { $env.PROVISIONING_DEBUG = true }` — and
+# remaining reads like `if not $env.PROVISIONING_DEBUG { ... }` are gated upstream
+# by the same flag.
diff --git a/nulib/lib_provisioning/providers/registry.nu b/nulib/lib_provisioning/providers/registry.nu
index e677fd5..f3d8213 100644
--- a/nulib/lib_provisioning/providers/registry.nu
+++ b/nulib/lib_provisioning/providers/registry.nu
@@ -270,7 +270,7 @@ export def refresh-provider-registry [] {
     init-provider-registry | ignore
 }
 
-# Export environment setup
-export-env {
-    $env.PROVIDER_REGISTRY_INITIALIZED = false
-}
+# export-env block removed by ADR-025 Phase 3 blocker 4.
+# The former block set $env.PROVIDER_REGISTRY_INITIALIZED = false at module load time.
+# Every read site uses `$env.PROVIDER_REGISTRY_INITIALIZED? | default false`, so the
+# unset state is equivalent to false. Zero behaviour change.