The International Building Code (IBC) serves as the foundation for construction standards across the United States, establishing minimum requirements for building safety, structural integrity, and life safety systems. Among the most frequently updated sections of the IBC are those governing builders hardware — the door locks, closers, exit devices, and related components that directly affect occupant safety during emergency egress. Understanding these revisions is essential for specifiers, contractors, and building owners who must ensure compliance while maintaining functional and secure building environments. The door hardware specification landscape continues to evolve as code bodies refine language and expand requirements to address real-world performance challenges. This article examines the most significant IBC revisions related to builders hardware, explains the rationale behind terminology changes, and provides practical guidance for implementing compliant door hardware systems in commercial construction.
Understanding the Role of IBC and BHMA in Builders Hardware Standards
The IBC and the International Fire Code (IFC) are model regulations that specify performance requirements for builders hardware to ensure public safety and welfare. These codes incorporate by reference product-specific consensus standards that establish baseline levels of performance, durability, and safety for building materials and components. States, counties, and cities adopt these model codes with jurisdiction-specific modifications, making it critical for building professionals to understand both the model code language and local amendments.
The Builders Hardware Manufacturers Association (BHMA) Role
The Builders Hardware Manufacturers Association (BHMA) is the only organization accredited by the American National Standards Institute (ANSI) to develop and maintain performance standards for door locks, door closers, door exit devices, and other builders hardware. BHMA has been instrumental in IBC change proposals, providing technical language and guidance on safe egress systems as they relate to door hardware. The ANSI/BHMA A156 Standards Series currently includes 41 standards covering everything from mechanical locks to electronic access control systems, and this number continues to grow as new technologies enter the door hardware market.
Like building codes themselves, builders hardware standards are developed through a consensus process and reviewed every few years. This regular review cycle ensures that standards keep pace with technological advancements and emerging safety requirements. The BHMA standards development process involves manufacturers, specifiers, code officials, testing laboratories, and other stakeholders who bring diverse perspectives to the table.
How Standards Integrate with the IBC
Building codes serve as an essential tool by packaging the complexity of numerous product standards into a single document. This integration makes it quicker and easier for code officials to assess whether a building meets the necessary requirements. By referencing ANSI/BHMA standards within the IBC, code officials gain access to detailed performance criteria without needing to duplicate that technical content within the code itself. This approach keeps the IBC manageable in size while ensuring that builders hardware products meet rigorous performance benchmarks.
Key Terminology Changes in the IBC for Door Hardware and Egress Systems
One of the most important developments in recent IBC editions has been the revision of descriptive names for special locking systems. These changes resulted from collaboration among door hardware manufacturers, specifiers, security integrators, and code officials who sought to more accurately describe the function of each system and expand where these systems are permitted. The revised terminology reduces ambiguity, improves consistency in interpretation, and enhances enforceability across jurisdictions.
Controlled Egress Doors Clarified
What was previously called “special locking arrangements” for Groups I-1 and I-2 has been revised to “controlled egress doors.” This terminology change clarifies that a controlled egress door is locked to prevent egress, and egress is controlled by someone else — typically a caregiver or staff member. These locking systems are permitted only in healthcare facilities where clinical needs require this functionality, such as newborn nurseries, maternity units, memory care units, and some assisted living facilities. The revised language more accurately describes both the function and the permitted application of these systems.
Delayed Egress Locking Systems Renamed
The change from “delayed egress locks” to “delayed egress locking systems” emphasizes that there is an entire system behind the delayed egress lock. This is not simply a single device but a coordinated arrangement of components designed to allow safe egress with a brief delay — typically 15 to 30 seconds. When the fire protection system activates, the delay is automatically eliminated, allowing the door to remain locked against ingress while providing immediate and free egress.
Delayed egress locking systems serve specific security needs in healthcare facilities, retail settings, schools, and childcare centers. For example, these systems can alert staff when a patient attempts to leave a secured unit, discourage shoplifting in retail environments, and prevent abductions from educational facilities. Over the last two editions of the IBC, delayed egress locking systems have been permitted in new occupancy groups, and in some instances, more than one delayed egress locking system is now permitted in the egress path.
Sensor Release and Door Hardware Release Terminology
Two additional terminology revisions warrant attention:
- Access-controlled egress doors to sensor release of electrically locked egress doors. The previous term led to wide variations in interpretation and enforcement. The revised language reduces ambiguity by specifying that a sensor on the egress side of the door detects approaching occupants and triggers the release of the electrical locking mechanism. This ensures immediate and free egress while maintaining security against unauthorized ingress.
- Electromagnetically locked egress doors to door hardware release of electrically locked egress doors. This change emphasizes that door-mounted hardware triggers the release. It also accommodates electrical locks that function by means other than electromagnetism, addressing the common misperception that any locking system with an electromagnetic lock must comply with electromagnetic lock requirements.
These terminology revisions, while seemingly minor, have significant practical implications. Specifiers can now select products with greater confidence that their intent matches code requirements, and code officials can enforce requirements with greater consistency. The panic device code compliance requirements also benefit from these clarifications, as exit devices must function correctly within the broader egress system framework.
ANSI/BHMA A156.24: Delayed Egress Locking System Standards
Contrary to door locking systems providing immediate egress, delayed egress locking systems prevent a door from opening immediately when egress is attempted in a non-emergency situation. ANSI/BHMA A156.24, Delayed Egress Locks, covers products used in connection with conventional exit devices or locks that cause doors to remain electrically locked for a predetermined length of time after triggering the countdown timer. This standard ensures consistent performance across manufacturers and applications.
Performance Requirements and Testing
The ANSI/BHMA A156.24 standard establishes specific performance criteria for delayed egress locking systems, including:
- Timing accuracy. The delay period must activate reliably within the specified range, typically 15 to 30 seconds, regardless of environmental conditions or usage frequency.
- Fire alarm integration. The system must automatically override the delay when the fire protection system activates, providing immediate egress without manual intervention.
- Power failure response. Upon loss of normal power, the system must unlock automatically or provide fail-safe egress through backup power arrangements.
- Cycling durability. The locking mechanism must withstand repeated operation without performance degradation over the expected service life of the product.
Applications and Occupancy Groups
As the IBC has expanded where delayed egress locking systems are permitted, their use has become more widespread. The following table summarizes the primary occupancy groups and typical applications for delayed egress locking systems:
| Occupancy Group | Typical Facility Type | Primary Security Need | Max Delay Duration |
|---|---|---|---|
| I-1 | Assisted living, residential care | Patient elopement prevention | 15 seconds |
| I-2 | Hospitals, nursing homes | Patient safety and wander management | 15 seconds |
| I-3 | Detention and correctional | Secured area containment | 15 seconds |
| E | Schools, childcare centers | Abduction prevention, delinquency | 15 seconds |
| M | Retail stores, shopping centers | Theft deterrence | 15 seconds |
| B | Office buildings, banks | After-hours security | 30 seconds |
Since the IBC now permits delayed egress locking systems in additional occupancy groups, requiring compliance with ANSI/BHMA A156.24 in the 2021 building codes helps ensure these systems function reliably and consistently. It is important to note that while a lock is not generally supposed to impede egress, there are specific situations where temporary delay is necessary as long as the application complies with the relevant building or life safety code. The door interlock systems used in healthcare and other facilities must also comply with these evolving code requirements.
Single Motion to Egress and Compliance with IBC 1010.1.9.6
IBC Section 1010.1.9.6 contains critical language regarding controlled egress doors in Groups I-1 and I-2, stating that the unlatching of any door or leaf shall not require more than one operation. This seemingly straightforward requirement has generated significant discussion among code officials, specifiers, building owners, and security professionals who ask what exactly constitutes a single operation and which hardware configurations comply.
ANSI/BHMA A156.41: The Single Motion Standard
To address the questions surrounding single-motion egress, BHMA developed ANSI/BHMA A156.41, Standard for Door Hardware Single Motion to Egress. This standard establishes requirements for hardware used on doors in the means of egress to comply with code requirements for not more than one operation to unlatch a door. The standard provides manufacturers, specifiers, and code officials with a clear framework for evaluating whether a particular hardware configuration meets the single-motion requirement.
BHMA proposed that the IBC language be revised to state that the unlatching of any door or leaf for egress shall not require more than one motion in a single linear or rotational direction to release all latching and all locking devices. This clarification eliminates ambiguity about whether complex sequences of operations are permissible and provides a clear performance standard for product selection.
Practical Compliance Strategies
Building professionals can take several practical steps to ensure compliance with single-motion egress requirements:
- Select tested products. Specify door hardware that has been tested and certified to ANSI/BHMA A156.41 for the specific door application. Certified products provide documented evidence of compliance and reduce the risk of enforcement issues during inspection.
- Coordinate hardware and door assemblies. Ensure that the door, frame, and hardware are specified as a coordinated system. Incompatible components can create unintended multi-step unlatching sequences that violate code requirements.
- Verify field conditions. Conduct pre-installation verification of door openings to confirm that hardware function is not compromised by field conditions such as door sag, frame misalignment, or installation errors.
- Document compliance. Maintain documentation of hardware specifications, certification reports, and inspection records as part of the project closeout documentation. This documentation is valuable for code enforcement inspections and future renovations.
Common Compliance Pitfalls
Several recurring issues can lead to non-compliance with single-motion egress requirements. Multi-point locking systems that require separate operations for each latch point are a frequent problem in the field, particularly on doors where the specified hardware was changed during value engineering. Electronic access control systems that fail to release all locking mechanisms upon activation of the egress sensor represent another common compliance gap. Additionally, hardware combinations that require different directions of motion — such as turning a lever and then sliding a bolt — fail the single-motion requirement unless the entire sequence occurs in a single continuous direction.
For facilities that require both security and life safety compliance, the selecting door hardware for mixed use facilities process must carefully balance these competing demands. The key is to select products that satisfy both the access control requirements of the facility and the egress requirements of the code.
Conclusion: Preparing for Future IBC Cycles
With the 2021 IBC code development cycle currently in progress, BHMA continues to be actively involved in proposing revisions intended to improve life safety. Building professionals should monitor these developments closely, as code changes can have significant implications for product selection, installation practices, and project documentation.
The evolution of IBC language regarding builders hardware reflects a broader trend toward clarity, precision, and performance-based requirements in building codes. Terminology revisions reduce ambiguity and improve consistency in interpretation and enforcement. Standards development through ANSI and BHMA provides the technical foundation that supports code requirements with tested performance criteria. Staying current with these changes is essential for anyone involved in specifying, installing, or inspecting door hardware in commercial construction. By understanding the terminology changes, the performance standards that support them, and the practical implications for compliance, building professionals can navigate the code landscape with confidence and deliver projects that meet both safety and security requirements.