Important UL Listings for Locksmiths and the Security Industry

UL listings are critically important to locksmiths because they provide verified, third-party assurance that the locks, hardware, and electronic access systems they install meet rigorous safety, security, and performance standards. 

These listings help locksmiths ensure that the products they recommend are not only durable and tamper-resistant, but also compliant with building codes, insurance requirements, and customer expectations — especially in high-security environments like schools, hospitals, government buildings, and commercial facilities. 

By relying on UL-listed products, locksmiths demonstrate professionalism and a commitment to quality, which builds trust with clients and reduces liability in the event of a security breach or system failure.

Here are some UL listings important to locksmiths and the security industry

1. UL 437 – High-Security Locks

• Why it matters: UL 437 is the most recognized listing for high-security locks and cylinders.
• What it tests: Resistance to picking, drilling, pulling, prying, and unauthorized key duplication.
• Who uses it: Critical for locks used in government, utilities, corrections, and commercial facilities.

2. UL 305 – Panic Hardware

• Why it matters: Ensures exit devices allow quick and safe egress during emergencies, especially in schools, theaters, and public buildings.
• What it tests: Durability and functionality under fire and stress conditions.

3. UL 10C – Positive Pressure Fire Tests of Door Assemblies

• Why it matters: Certifies fire-rated door hardware can withstand high heat and smoke pressure.
• What it tests: Door assemblies with locks, hinges, and other components under fire conditions.
• Relevant for: Commercial buildings, hospitals, and any facility requiring fire-rated egress.

4. UL 294 – Access Control System Units

• Why it matters: Applies to electronic access control systems such as card readers, keypads, electric strikes, electrified locks, and Intelligent Keys.
• What it tests: Electrical performance, tamper resistance, and endurance.
• Vital for: Integration with security systems in offices, campuses, and government facilities.

5. UL 1034 – Burglary-Resistant Electric Locking Mechanisms

• Why it matters: Relevant for electrified locks used in high-security settings like ATMs, data centers, and safes.
• What it tests: Resistance to mechanical attack, manipulation, and bypass.

6. UL 72 – Tests for Fire Resistance of Record Protection Equipment

• Why it matters: Covers safes, vaults, and secure storage that protect paper records and digital media from fire.
• Important for: Secure containers used in combination with high-security locks.

7. UL 498 – Attachment Plugs and Receptacles (Indirectly Relevant)

• Why it matters: Ensures safety of power connections for electrified locks and access control systems.
• Useful for: Facilities that integrate locking systems with building electrical infrastructure.

Why These UL Listings Matter:

• They validate product quality, safety, and tamper resistance.
• They are often required by building codes and industry specifications.
• They give end users, specifiers, and AHJs (Authorities Having Jurisdiction) confidence in the product's reliability and performance.