diff --git a/docs/assets/annotations.png b/docs/assets/annotations.png
new file mode 100644
index 00000000..f2100220
Binary files /dev/null and b/docs/assets/annotations.png differ
diff --git a/docs/problem-matchers.md b/docs/problem-matchers.md
index 520d26ba..e496b299 100644
--- a/docs/problem-matchers.md
+++ b/docs/problem-matchers.md
@@ -6,7 +6,7 @@ Problem Matchers are a way to scan the output of actions for a specified regex p
 
 Currently, GitHub Actions limit the annotation count in a workflow run.
 
-- 10 warning annotations and 10 error annotations per step
+- 10 warning annotations, 10 error annotations, and 10 notice annotations per step
 - 50 annotations per job (sum of annotations from all the steps)
 - 50 annotations per run (separate from the job annotations, these annotations aren’t created by users)
 
diff --git a/packages/core/README.md b/packages/core/README.md
index deffaa5d..6681502d 100644
--- a/packages/core/README.md
+++ b/packages/core/README.md
@@ -92,6 +92,8 @@ try {
 
   // Do stuff
   core.info('Output to the actions build log')
+
+  core.notice('This is a message that will also emit an annotation')
 }
 catch (err) {
   core.error(`Error ${err}, action may still succeed though`);
@@ -115,6 +117,54 @@ const result = await core.group('Do something async', async () => {
 })
 ```
 
+#### Annotations
+
+This library has 3 methods that will produce [annotations](https://docs.github.com/en/rest/reference/checks#create-a-check-run). 
+```js
+core.error('This is a bad error. This will also fail the build.')
+
+core.warning('Something went wrong, but it\'s not bad enough to fail the build.')
+
+core.notice('Something happened that you might want to know about.')
+```
+
+These will surface to the UI in the Actions page and on Pull Requests. They look something like this:
+
+![Annotations Image](../../docs/assets/annotations.png)
+
+These annotations can also be attached to particular lines and columns of your source files to show exactly where a problem is occuring. 
+
+These options are: 
+```typescript
+export interface AnnotationProperties {
+  /**
+   * A title for the annotation.
+   */
+  title?: string
+
+  /**
+   * The start line for the annotation.
+   */
+  startLine?: number
+
+  /**
+   * The end line for the annotation. Defaults to `startLine` when `startLine` is provided.
+   */
+  endLine?: number
+
+  /**
+   * The start column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
+   */
+  startColumn?: number
+
+  /**
+   * The start column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
+   * Defaults to `startColumn` when `startColumn` is provided.
+   */
+  endColumn?: number
+}
+```
+
 #### Styling output
 
 Colored output is supported in the Action logs via standard [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code). 3/4 bit, 8 bit and 24 bit colors are all supported.
diff --git a/packages/core/__tests__/core.test.ts b/packages/core/__tests__/core.test.ts
index 5be8df4e..f5ccec3b 100644
--- a/packages/core/__tests__/core.test.ts
+++ b/packages/core/__tests__/core.test.ts
@@ -2,6 +2,7 @@ import * as fs from 'fs'
 import * as os from 'os'
 import * as path from 'path'
 import * as core from '../src/core'
+import {toCommandProperties} from '../src/utils'
 
 /* eslint-disable @typescript-eslint/unbound-method */
 
@@ -269,6 +270,20 @@ describe('@actions/core', () => {
     assertWriteCalls([`::error::Error: ${message}${os.EOL}`])
   })
 
+  it('error handles parameters correctly', () => {
+    const message = 'this is my error message'
+    core.error(new Error(message), {
+      title: 'A title',
+      startColumn: 1,
+      endColumn: 2,
+      startLine: 5,
+      endLine: 5
+    })
+    assertWriteCalls([
+      `::error title=A title,line=5,endLine=5,col=1,endColumn=2::Error: ${message}${os.EOL}`
+    ])
+  })
+
   it('warning sets the correct message', () => {
     core.warning('Warning')
     assertWriteCalls([`::warning::Warning${os.EOL}`])
@@ -285,6 +300,38 @@ describe('@actions/core', () => {
     assertWriteCalls([`::warning::Error: ${message}${os.EOL}`])
   })
 
+  it('warning handles parameters correctly', () => {
+    const message = 'this is my error message'
+    core.warning(new Error(message), {
+      title: 'A title',
+      startColumn: 1,
+      endColumn: 2,
+      startLine: 5,
+      endLine: 5
+    })
+    assertWriteCalls([
+      `::warning title=A title,line=5,endLine=5,col=1,endColumn=2::Error: ${message}${os.EOL}`
+    ])
+  })
+
+  it('annotations map field names correctly', () => {
+    const commandProperties = toCommandProperties({
+      title: 'A title',
+      startColumn: 1,
+      endColumn: 2,
+      startLine: 5,
+      endLine: 5
+    })
+    expect(commandProperties.title).toBe('A title')
+    expect(commandProperties.col).toBe(1)
+    expect(commandProperties.endColumn).toBe(2)
+    expect(commandProperties.line).toBe(5)
+    expect(commandProperties.endLine).toBe(5)
+
+    expect(commandProperties.startColumn).toBeUndefined()
+    expect(commandProperties.startLine).toBeUndefined()
+  })
+
   it('startGroup starts a new group', () => {
     core.startGroup('my-group')
     assertWriteCalls([`::group::my-group${os.EOL}`])
diff --git a/packages/core/src/command.ts b/packages/core/src/command.ts
index 05e1261a..2796fce9 100644
--- a/packages/core/src/command.ts
+++ b/packages/core/src/command.ts
@@ -6,7 +6,7 @@ import {toCommandValue} from './utils'
 // We use any as a valid input type
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
-interface CommandProperties {
+export interface CommandProperties {
   [key: string]: any
 }
 
diff --git a/packages/core/src/core.ts b/packages/core/src/core.ts
index c5c36fa4..e57d9f15 100644
--- a/packages/core/src/core.ts
+++ b/packages/core/src/core.ts
@@ -1,6 +1,6 @@
 import {issue, issueCommand} from './command'
 import {issueCommand as issueFileCommand} from './file-command'
-import {toCommandValue} from './utils'
+import {toCommandProperties, toCommandValue} from './utils'
 
 import * as os from 'os'
 import * as path from 'path'
@@ -31,6 +31,38 @@ export enum ExitCode {
   Failure = 1
 }
 
+/**
+ * Optional properties that can be sent with annotatation commands (notice, error, and warning)
+ * See: https://docs.github.com/en/rest/reference/checks#create-a-check-run for more information about annotations.
+ */
+export interface AnnotationProperties {
+  /**
+   * A title for the annotation.
+   */
+  title?: string
+
+  /**
+   * The start line for the annotation.
+   */
+  startLine?: number
+
+  /**
+   * The end line for the annotation. Defaults to `startLine` when `startLine` is provided.
+   */
+  endLine?: number
+
+  /**
+   * The start column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
+   */
+  startColumn?: number
+
+  /**
+   * The start column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
+   * Defaults to `startColumn` when `startColumn` is provided.
+   */
+  endColumn?: number
+}
+
 //-----------------------------------------------------------------------
 // Variables
 //-----------------------------------------------------------------------
@@ -199,17 +231,49 @@ export function debug(message: string): void {
 /**
  * Adds an error issue
  * @param message error issue message. Errors will be converted to string via toString()
+ * @param properties optional properties to add to the annotation.
  */
-export function error(message: string | Error): void {
-  issue('error', message instanceof Error ? message.toString() : message)
+export function error(
+  message: string | Error,
+  properties: AnnotationProperties = {}
+): void {
+  issueCommand(
+    'error',
+    toCommandProperties(properties),
+    message instanceof Error ? message.toString() : message
+  )
 }
 
 /**
- * Adds an warning issue
+ * Adds a warning issue
  * @param message warning issue message. Errors will be converted to string via toString()
+ * @param properties optional properties to add to the annotation.
  */
-export function warning(message: string | Error): void {
-  issue('warning', message instanceof Error ? message.toString() : message)
+export function warning(
+  message: string | Error,
+  properties: AnnotationProperties = {}
+): void {
+  issueCommand(
+    'warning',
+    toCommandProperties(properties),
+    message instanceof Error ? message.toString() : message
+  )
+}
+
+/**
+ * Adds a notice issue
+ * @param message notice issue message. Errors will be converted to string via toString()
+ * @param properties optional properties to add to the annotation.
+ */
+export function notice(
+  message: string | Error,
+  properties: AnnotationProperties = {}
+): void {
+  issueCommand(
+    'notice',
+    toCommandProperties(properties),
+    message instanceof Error ? message.toString() : message
+  )
 }
 
 /**
diff --git a/packages/core/src/utils.ts b/packages/core/src/utils.ts
index 2f1d60ce..8596b5f4 100644
--- a/packages/core/src/utils.ts
+++ b/packages/core/src/utils.ts
@@ -1,6 +1,9 @@
 // We use any as a valid input type
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
+import {AnnotationProperties} from './core'
+import {CommandProperties} from './command'
+
 /**
  * Sanitizes an input into a string so it can be passed into issueCommand safely
  * @param input input to sanitize into a string
@@ -13,3 +16,25 @@ export function toCommandValue(input: any): string {
   }
   return JSON.stringify(input)
 }
+
+/**
+ *
+ * @param annotationProperties
+ * @returns The command properties to send with the actual annotation command
+ * See IssueCommandProperties: https://github.com/actions/runner/blob/main/src/Runner.Worker/ActionCommandManager.cs#L646
+ */
+export function toCommandProperties(
+  annotationProperties: AnnotationProperties
+): CommandProperties {
+  if (!Object.keys(annotationProperties).length) {
+    return {}
+  }
+
+  return {
+    title: annotationProperties.title,
+    line: annotationProperties.startLine,
+    endLine: annotationProperties.endLine,
+    col: annotationProperties.startColumn,
+    endColumn: annotationProperties.endColumn
+  }
+}