diff --git a/eng/tools/typespec-validation/src/rules/linter-ruleset.ts b/eng/tools/typespec-validation/src/rules/linter-ruleset.ts
index 9cb783603942..b3e5b69aa258 100644
--- a/eng/tools/typespec-validation/src/rules/linter-ruleset.ts
+++ b/eng/tools/typespec-validation/src/rules/linter-ruleset.ts
@@ -27,10 +27,6 @@ export class LinterRulesetRule implements Rule {
     const configText = await readTspConfig(folder);
     const config = parse(configText);
 
-    const rpFolder =
-      config?.options?.["@azure-tools/typespec-autorest"]?.["azure-resource-provider-folder"];
-    stdOutput += `azure-resource-provider-folder: ${JSON.stringify(rpFolder)}\n`;
-
     const mainTspExists = await fileExists(join(folder, "main.tsp"));
     const clientTspExists = await fileExists(join(folder, "client.tsp"));
     const files = [];
@@ -45,25 +41,21 @@ export class LinterRulesetRule implements Rule {
     const linterExtends = config?.linter?.extends;
     stdOutput += `linter.extends: ${JSON.stringify(linterExtends)}`;
 
+    // Normalize path separators
+    const normalizedFolder = folder.replace(/\\/g, "/");
+
     let requiredRuleset = "";
-    if (rpFolder?.trim()?.endsWith("resource-manager")) {
+    if (
+      normalizedFolder.includes("/resource-manager/") ||
+      normalizedFolder.trim().endsWith(".Management")
+    ) {
       requiredRuleset = "@azure-tools/typespec-azure-rulesets/resource-manager";
-    } else if (rpFolder?.trim()?.endsWith("data-plane")) {
-      requiredRuleset = "@azure-tools/typespec-azure-rulesets/data-plane";
     } else if (clientTspExists && !mainTspExists) {
       // Assume folders with no autorest setting, containing only "client.tsp" but no "main.tsp",
       // are data-plane (e.g. HealthInsights.TrialMatcher)
       requiredRuleset = "@azure-tools/typespec-azure-rulesets/data-plane";
     } else {
-      // Cannot determine if spec is data-plane or resource-manager, so cannot know
-      // which linter ruleset is required.
-      success = false;
-      errorOutput +=
-        "tspconfig.yaml must define the following property:\n" +
-        "\n" +
-        "options:\n" +
-        '  "@azure-tools/typespec-autorest":\n' +
-        '    azure-resource-provider-folder: "data-plane" | "resource-manager"\n';
+      requiredRuleset = "@azure-tools/typespec-azure-rulesets/data-plane";
     }
 
     if (linterExtends) {
diff --git a/eng/tools/typespec-validation/test/linter-ruleset.test.ts b/eng/tools/typespec-validation/test/linter-ruleset.test.ts
index 90e995bdc843..ac8e4dae9a11 100644
--- a/eng/tools/typespec-validation/test/linter-ruleset.test.ts
+++ b/eng/tools/typespec-validation/test/linter-ruleset.test.ts
@@ -29,30 +29,24 @@ describe("linter-ruleset", function () {
   it("succeeds with resource-manager/resource-manager", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "resource-manager"
 linter:
   extends:
     - "@azure-tools/typespec-azure-rulesets/resource-manager"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/resource-manager/Foo");
     assert(result.success);
   });
 
   it("succeeds with data-plane/data-plane", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "data-plane"
 linter:
   extends:
     - "@azure-tools/typespec-azure-rulesets/data-plane"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/data-plane/Foo");
     assert(result.success);
   });
 
@@ -80,76 +74,58 @@ linter:
   });
 
   it("fails with resource-manager/no-linter", async function () {
-    readTspConfigSpy.mockImplementation(() =>
-      Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "resource-manager"
-`),
-    );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    readTspConfigSpy.mockImplementation(() => Promise.resolve(``));
+    const result = await new LinterRulesetRule().execute("specification/foo/resource-manager/Foo");
     assert(!result.success);
   });
 
   it("fails with resource-manager/data-plane", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "resource-manager"
 linter:
   extends:
     - "@azure-tools/typespec-azure-rulesets/data-plane"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/Foo.Management");
     assert(!result.success);
   });
 
   it("fails with data-plane/resource-manager", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "data-plane"
 linter:
   extends:
     - "@azure-tools/typespec-azure-rulesets/resource-manager"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/data-plane/Foo");
     assert(!result.success);
   });
 
   it("fails with data-plane/old-and-new", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "data-plane"
 linter:
   extends:
     - "@azure-tools/typespec-azure-core/all"
     - "@azure-tools/typespec-azure-rulesets/data-plane"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/data-plane/Foo");
     assert(!result.success);
   });
 
   it("fails with resource-manager/old-and-new", async function () {
     readTspConfigSpy.mockImplementation(() =>
       Promise.resolve(`
-options:
-  "@azure-tools/typespec-autorest":
-    azure-resource-provider-folder: "resource-manager"
 linter:
   extends:
     - "@azure-tools/typespec-azure-resource-manager/all"
     - "@azure-tools/typespec-azure-rulesets/resource-manager"
 `),
     );
-    const result = await new LinterRulesetRule().execute(mockFolder);
+    const result = await new LinterRulesetRule().execute("specification/foo/resource-manager/Foo");
 
     assert(!result.success);
   });
diff --git a/specification/widget/data-plane/WidgetAnalytics/tspconfig.yaml b/specification/widget/data-plane/WidgetAnalytics/tspconfig.yaml
index 70b3aab03e5b..1b86a0e76f75 100644
--- a/specification/widget/data-plane/WidgetAnalytics/tspconfig.yaml
+++ b/specification/widget/data-plane/WidgetAnalytics/tspconfig.yaml
@@ -10,8 +10,6 @@ linter:
     - "@azure-tools/typespec-azure-rulesets/data-plane"
 options:
   "@azure-tools/typespec-autorest":
-    # TODO: Does anything need this set, if it's not used in output-file?
-    azure-resource-provider-folder: "data-plane"
     emit-lro-options: "none"
     emitter-output-dir: "{project-root}"
     output-file: "{version-status}/{version}/widgetanalytics.json"
diff --git a/specification/widget/resource-manager/Microsoft.Widget/Widget/tspconfig.yaml b/specification/widget/resource-manager/Microsoft.Widget/Widget/tspconfig.yaml
index 81c35056d002..9c97da201c09 100644
--- a/specification/widget/resource-manager/Microsoft.Widget/Widget/tspconfig.yaml
+++ b/specification/widget/resource-manager/Microsoft.Widget/Widget/tspconfig.yaml
@@ -7,8 +7,6 @@ options:
   "@azure-tools/typespec-autorest":
     use-read-only-status-schema: true
     emitter-output-dir: "{project-root}"
-    # TODO: Does anything need this set, if it's not used in output-file?  Currently required by TSV.
-    azure-resource-provider-folder: "resource-manager"
     output-file: "{version-status}/{version}/widget.json"
     arm-types-dir: "{project-root}/../../../../common-types/resource-management"
   "@azure-typespec/http-client-csharp-mgmt":