diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index e2e6fe8871..4d87fd257e 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -1207,14 +1207,6 @@ impl CliOptions {
     }
   }
 
-  // If the main module should be treated as being in an npm package.
-  // This is triggered via a secret environment variable which is used
-  // for functionality like child_process.fork. Users should NOT depend
-  // on this functionality.
-  pub fn is_npm_main(&self) -> bool {
-    NPM_PROCESS_STATE.is_some()
-  }
-
   pub fn has_node_modules_dir(&self) -> bool {
     self.maybe_node_modules_folder.is_some()
   }
diff --git a/cli/factory.rs b/cli/factory.rs
index 53ae0aee66..b6ec0d109c 100644
--- a/cli/factory.rs
+++ b/cli/factory.rs
@@ -652,7 +652,6 @@ impl CliFactory {
           self.cjs_tracker()?.clone(),
           self.fs().clone(),
           Some(self.parsed_source_cache().clone()),
-          self.cli_options()?.is_npm_main(),
         );
 
         Ok(Arc::new(NodeCodeTranslator::new(
diff --git a/cli/module_loader.rs b/cli/module_loader.rs
index 43c9e1aa07..dbcfd8b6c8 100644
--- a/cli/module_loader.rs
+++ b/cli/module_loader.rs
@@ -206,7 +206,6 @@ struct SharedCliModuleLoaderState {
   lib_worker: TsTypeLib,
   initial_cwd: PathBuf,
   is_inspecting: bool,
-  is_npm_main: bool,
   is_repl: bool,
   cjs_tracker: Arc<CjsTracker>,
   code_cache: Option<Arc<CodeCache>>,
@@ -252,7 +251,6 @@ impl CliModuleLoaderFactory {
         lib_worker: options.ts_type_lib_worker(),
         initial_cwd: options.initial_cwd().to_path_buf(),
         is_inspecting: options.is_inspecting(),
-        is_npm_main: options.is_npm_main(),
         is_repl: matches!(
           options.sub_command(),
           DenoSubcommand::Repl(_) | DenoSubcommand::Jupyter(_)
@@ -286,7 +284,6 @@ impl CliModuleLoaderFactory {
       Rc::new(CliModuleLoader(Rc::new(CliModuleLoaderInner {
         lib,
         is_worker,
-        is_npm_main: self.shared.is_npm_main,
         parent_permissions,
         permissions,
         graph_container: graph_container.clone(),
@@ -343,7 +340,6 @@ impl ModuleLoaderFactory for CliModuleLoaderFactory {
 
 struct CliModuleLoaderInner<TGraphContainer: ModuleGraphContainer> {
   lib: TsTypeLib,
-  is_npm_main: bool,
   is_worker: bool,
   /// The initial set of permissions used to resolve the static imports in the
   /// worker. These are "allow all" for main worker, and parent thread
@@ -668,14 +664,11 @@ impl<TGraphContainer: ModuleGraphContainer>
         is_script,
         ..
       })) => {
-        // todo(dsherret): revert in https://github.com/denoland/deno/pull/26439
-        if self.is_npm_main && *is_script
-          || self.shared.cjs_tracker.is_cjs_with_known_is_script(
-            specifier,
-            *media_type,
-            *is_script,
-          )?
-        {
+        if self.shared.cjs_tracker.is_cjs_with_known_is_script(
+          specifier,
+          *media_type,
+          *is_script,
+        )? {
           return Ok(Some(CodeOrDeferredEmit::Cjs {
             specifier,
             media_type: *media_type,
diff --git a/cli/node.rs b/cli/node.rs
index 1d410a726a..8235745a91 100644
--- a/cli/node.rs
+++ b/cli/node.rs
@@ -62,10 +62,6 @@ pub struct CliCjsCodeAnalyzer {
   cjs_tracker: Arc<CjsTracker>,
   fs: deno_fs::FileSystemRc,
   parsed_source_cache: Option<Arc<ParsedSourceCache>>,
-  // todo(dsherret): hack, remove in https://github.com/denoland/deno/pull/26439
-  // For example, this does not properly handle if cjs analysis was already done
-  // and has been cached.
-  is_npm_main: bool,
 }
 
 impl CliCjsCodeAnalyzer {
@@ -74,14 +70,12 @@ impl CliCjsCodeAnalyzer {
     cjs_tracker: Arc<CjsTracker>,
     fs: deno_fs::FileSystemRc,
     parsed_source_cache: Option<Arc<ParsedSourceCache>>,
-    is_npm_main: bool,
   ) -> Self {
     Self {
       cache,
       cjs_tracker,
       fs,
       parsed_source_cache,
-      is_npm_main,
     }
   }
 
@@ -106,9 +100,7 @@ impl CliCjsCodeAnalyzer {
     }
 
     let cjs_tracker = self.cjs_tracker.clone();
-    let is_npm_main = self.is_npm_main;
-    let is_maybe_cjs =
-      cjs_tracker.is_maybe_cjs(specifier, media_type)? || is_npm_main;
+    let is_maybe_cjs = cjs_tracker.is_maybe_cjs(specifier, media_type)?;
     let analysis = if is_maybe_cjs {
       let maybe_parsed_source = self
         .parsed_source_cache
@@ -135,7 +127,7 @@ impl CliCjsCodeAnalyzer {
             parsed_source.specifier(),
             media_type,
             is_script,
-          )? || is_script && is_npm_main;
+          )?;
           if is_cjs {
             let analysis = parsed_source.analyze_cjs();
             Ok(CliCjsAnalysis::Cjs {
diff --git a/cli/standalone/mod.rs b/cli/standalone/mod.rs
index 774dda62f0..c9413b02ca 100644
--- a/cli/standalone/mod.rs
+++ b/cli/standalone/mod.rs
@@ -646,7 +646,6 @@ pub async fn run(data: StandaloneData) -> Result<i32, AnyError> {
     cjs_tracker.clone(),
     fs.clone(),
     None,
-    false,
   );
   let node_code_translator = Arc::new(NodeCodeTranslator::new(
     cjs_esm_code_analyzer,