diff --git a/CHANGELOG.md b/CHANGELOG.md
index 848a251..2d07368 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2024-12-01)
+## Unreleased (2024-12-03)
 
 <section class="packages">
 
@@ -188,6 +188,28 @@ This release closes the following issue:
 
 <!-- /.package -->
 
+<section class="package" id="constants-float64-max-safe-nth-tribonacci-unreleased">
+
+#### [@stdlib/constants/float64/max-safe-nth-tribonacci](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float64/max-safe-nth-tribonacci)
+
+<details>
+
+<section class="features">
+
+##### Features
+
+-   [`27e0f3c`](https://github.com/stdlib-js/stdlib/commit/27e0f3c432b142bcef3e679670802947b9ad16ca) - add `constants/float64/max-safe-nth-tribonacci` [(#3317)](https://github.com/stdlib-js/stdlib/pull/3317)
+
+</section>
+
+<!-- /.features -->
+
+</details>
+
+</section>
+
+<!-- /.package -->
+
 </section>
 
 <!-- /.packages -->
@@ -208,9 +230,10 @@ A total of 3 issues were closed in this release:
 
 ### Contributors
 
-A total of 4 people contributed to this release. Thank you to the following contributors:
+A total of 5 people contributed to this release. Thank you to the following contributors:
 
 -   Aayush Khanna
+-   Athan Reines
 -   Gunj Joshi
 -   Gururaj Gurram
 -   Philipp Burckhardt
@@ -225,6 +248,7 @@ A total of 4 people contributed to this release. Thank you to the following cont
 
 <details>
 
+-   [`27e0f3c`](https://github.com/stdlib-js/stdlib/commit/27e0f3c432b142bcef3e679670802947b9ad16ca) - **feat:** add `constants/float64/max-safe-nth-tribonacci` [(#3317)](https://github.com/stdlib-js/stdlib/pull/3317) _(by Gunj Joshi, Athan Reines)_
 -   [`92c0d4e`](https://github.com/stdlib-js/stdlib/commit/92c0d4e65a8ffef2a2264ba906cfe8020c483b13) - **docs:** clean-up and use C floats when appropriate _(by Philipp Burckhardt)_
 -   [`19343f5`](https://github.com/stdlib-js/stdlib/commit/19343f5f7a3359b989d091ed31d9e3c64cf89c9c) - **chore:** fix copyright years and disable lint rules _(by Philipp Burckhardt)_
 -   [`31c168c`](https://github.com/stdlib-js/stdlib/commit/31c168c72351f2885bcf7361b9168cefb454f6dc) - **fix:** add missing `f` suffix in `constants/float32/ln-two` [(#3110)](https://github.com/stdlib-js/stdlib/pull/3110) _(by Gunj Joshi)_
diff --git a/float64/max-safe-nth-tribonacci/README.md b/float64/max-safe-nth-tribonacci/README.md
new file mode 100644
index 0000000..22751c1
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/README.md
@@ -0,0 +1,183 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# FLOAT64_MAX_SAFE_NTH_TRIBONACCI
+
+> Maximum safe nth [Tribonacci number][tribonacci-number] when stored in [double-precision floating-point][ieee754] format.
+
+<section class="usage">
+
+## Usage
+
+<!-- eslint-disable id-length -->
+
+```javascript
+var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( '@stdlib/constants/float64/max-safe-nth-tribonacci' );
+```
+
+#### FLOAT64_MAX_SAFE_NTH_TRIBONACCI
+
+Maximum [safe][safe-integers] nth [Tribonacci number][tribonacci-number] when stored in [double-precision floating-point][ieee754] format.
+
+<!-- eslint-disable id-length -->
+
+```javascript
+var bool = ( FLOAT64_MAX_SAFE_NTH_TRIBONACCI === 63 );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint-disable id-length -->
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( '@stdlib/constants/float64/max-safe-nth-tribonacci' );
+
+function tribonacci( n ) {
+    var a;
+    var b;
+    var c;
+    var d;
+    var i;
+
+    a = 0;
+    b = 0;
+    c = 1;
+    if ( n === 0 ) {
+        return a;
+    }
+    if ( n === 1 ) {
+        return b;
+    }
+    if ( n === 2 ) {
+        return c;
+    }
+    for ( i = 3; i <= n; i++ ) {
+        d = a + b + c;
+        a = b;
+        b = c;
+        c = d;
+    }
+    return c;
+}
+
+var v;
+var i;
+for ( i = 0; i < 100; i++ ) {
+    v = tribonacci( i );
+    if ( i > FLOAT64_MAX_SAFE_NTH_TRIBONACCI ) {
+        console.log( 'Unsafe: %d', v );
+    } else {
+        console.log( 'Safe:   %d', v );
+    }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/constants/float64/max_safe_nth_tribonacci.h"
+```
+
+#### STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_TRIBONACCI
+
+Maximum [safe][safe-integers] nth [Tribonacci number][tribonacci-number] when stored in [double-precision floating-point][ieee754] format.
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[safe-integers]: http://www.2ality.com/2013/10/safe-integers.html
+
+[tribonacci-number]: https://en.wikipedia.org/wiki/Tribonacci_number
+
+[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
+
+<!-- <related-links> -->
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->
diff --git a/float64/max-safe-nth-tribonacci/docs/repl.txt b/float64/max-safe-nth-tribonacci/docs/repl.txt
new file mode 100644
index 0000000..8228c97
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/docs/repl.txt
@@ -0,0 +1,13 @@
+
+{{alias}}
+    Maximum safe nth Tribonacci number when stored in double-precision
+    floating-point format.
+
+    Examples
+    --------
+    > {{alias}}
+    63
+
+    See Also
+    --------
+
diff --git a/float64/max-safe-nth-tribonacci/docs/types/index.d.ts b/float64/max-safe-nth-tribonacci/docs/types/index.d.ts
new file mode 100644
index 0000000..bf85fb6
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/docs/types/index.d.ts
@@ -0,0 +1,33 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Maximum safe nth Tribonacci number when stored in double-precision floating-point format.
+*
+* @example
+* var max = FLOAT64_MAX_SAFE_NTH_TRIBONACCI;
+* // returns 63
+*/
+declare const FLOAT64_MAX_SAFE_NTH_TRIBONACCI: number;
+
+
+// EXPORTS //
+
+export = FLOAT64_MAX_SAFE_NTH_TRIBONACCI;
diff --git a/float64/max-safe-nth-tribonacci/docs/types/test.ts b/float64/max-safe-nth-tribonacci/docs/types/test.ts
new file mode 100644
index 0000000..fd1e495
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( './index' );
+
+
+// TESTS //
+
+// The export is a number...
+{
+	// eslint-disable-next-line @typescript-eslint/no-unused-expressions
+	FLOAT64_MAX_SAFE_NTH_TRIBONACCI; // $ExpectType number
+}
diff --git a/float64/max-safe-nth-tribonacci/examples/index.js b/float64/max-safe-nth-tribonacci/examples/index.js
new file mode 100644
index 0000000..dcd5b4a
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/examples/index.js
@@ -0,0 +1,60 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( './../lib' ); // eslint-disable-line id-length
+
+function tribonacci( n ) {
+	var a;
+	var b;
+	var c;
+	var d;
+	var i;
+
+	a = 0;
+	b = 0;
+	c = 1;
+	if ( n === 0 ) {
+		return a;
+	}
+	if ( n === 1 ) {
+		return b;
+	}
+	if ( n === 2 ) {
+		return c;
+	}
+	for ( i = 3; i <= n; i++ ) {
+		d = a + b + c;
+		a = b;
+		b = c;
+		c = d;
+	}
+	return c;
+}
+
+var v;
+var i;
+for ( i = 0; i < 100; i++ ) {
+	v = tribonacci( i );
+	if ( i > FLOAT64_MAX_SAFE_NTH_TRIBONACCI ) {
+		console.log( 'Unsafe: %d', v );
+	} else {
+		console.log( 'Safe:   %d', v );
+	}
+}
diff --git a/float64/max-safe-nth-tribonacci/include/stdlib/constants/float64/max_safe_nth_tribonacci.h b/float64/max-safe-nth-tribonacci/include/stdlib/constants/float64/max_safe_nth_tribonacci.h
new file mode 100644
index 0000000..1c3c96f
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/include/stdlib/constants/float64/max_safe_nth_tribonacci.h
@@ -0,0 +1,27 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_CONSTANTS_FLOAT64_MAX_SAFE_NTH_TRIBONACCI_H
+#define STDLIB_CONSTANTS_FLOAT64_MAX_SAFE_NTH_TRIBONACCI_H
+
+/**
+* Maximum safe nth Tribonacci number when stored in single-precision floating-point format.
+*/
+#define STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_TRIBONACCI 63
+
+#endif // !STDLIB_CONSTANTS_FLOAT64_MAX_SAFE_NTH_TRIBONACCI_H
diff --git a/float64/max-safe-nth-tribonacci/lib/index.js b/float64/max-safe-nth-tribonacci/lib/index.js
new file mode 100644
index 0000000..a5d25ca
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/lib/index.js
@@ -0,0 +1,49 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Maximum safe nth Tribonacci number when stored in double-precision floating-point format.
+*
+* @module @stdlib/constants/float64/max-safe-nth-tribonacci
+* @type {integer}
+*
+* @example
+* var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( '@stdlib/constants/float64/max-safe-nth-tribonacci' );
+* // returns 63
+*/
+
+
+// MAIN //
+
+/**
+* Maximum safe nth Tribonacci number when stored in double-precision floating-point format.
+*
+* @constant
+* @type {integer}
+* @default 63
+* @see [Tribonacci number]{@link https://en.wikipedia.org/wiki/Tribonacci_number}
+* @see [IEEE 754]{@link https://en.wikipedia.org/wiki/IEEE_754-1985}
+*/
+var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = 63|0; // eslint-disable-line id-length
+
+
+// EXPORTS //
+
+module.exports = FLOAT64_MAX_SAFE_NTH_TRIBONACCI;
diff --git a/float64/max-safe-nth-tribonacci/manifest.json b/float64/max-safe-nth-tribonacci/manifest.json
new file mode 100644
index 0000000..844d692
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/manifest.json
@@ -0,0 +1,36 @@
+{
+  "options": {},
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "src": [],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": []
+    }
+  ]
+}
diff --git a/float64/max-safe-nth-tribonacci/package.json b/float64/max-safe-nth-tribonacci/package.json
new file mode 100644
index 0000000..f849b09
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/package.json
@@ -0,0 +1,73 @@
+{
+  "name": "@stdlib/constants/float64/max-safe-nth-tribonacci",
+  "version": "0.0.0",
+  "description": "Maximum safe nth Tribonacci number when stored in double-precision floating-point format.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdmath",
+    "constant",
+    "const",
+    "max",
+    "maximum",
+    "tribonacci",
+    "number",
+    "trib",
+    "safe",
+    "integer",
+    "double",
+    "dbl",
+    "floating",
+    "point",
+    "floating-point",
+    "float",
+    "float64",
+    "f64",
+    "ieee754"
+  ]
+}
diff --git a/float64/max-safe-nth-tribonacci/test/test.js b/float64/max-safe-nth-tribonacci/test/test.js
new file mode 100644
index 0000000..b386846
--- /dev/null
+++ b/float64/max-safe-nth-tribonacci/test/test.js
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var FLOAT64_MAX_SAFE_NTH_TRIBONACCI = require( './../lib' ); // eslint-disable-line id-length
+
+
+// TESTS //
+
+tape( 'main export is a number', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof FLOAT64_MAX_SAFE_NTH_TRIBONACCI, 'number', 'main export is a number' );
+	t.end();
+});
+
+tape( 'the exported value is 63', function test( t ) {
+	t.strictEqual( FLOAT64_MAX_SAFE_NTH_TRIBONACCI, 63, 'returns expected value' );
+	t.end();
+});