This page provides a compilation of Letters to Industry (LTI) which are posted within their respective areas throughout the Office of the Fire Marshal website. To subscribe to these letters, visit the Email Subscriptions page.
May 2026 - Fire Alarm permits for Two-Way Communication System, Stairway Communication System, Fire Phone, and Heat Trace System
April 2026 - Submittal and Inspections Requirements for Energy Storage System
June 2025 - Submission Process for Access Control Systems
Submission Process for Access Control Systems
March 2025 - Submittal and Inspection Requirements for Access and Egress Control, Delayed Egress Locking, and Latching Systems
November 2024 - Special Locking Devices
September 2024 - Requirements for Hydraulic Design Information Signage
Requirements for Hydraulic Design Information Signage
July 2022 - Fire Protection Equipment Systems
Fire Protection Equipment Systems - Construction Permit Requirements
May 2022 - Fire Alarm
The End of 3G: Does your Fire Alarm Communication Dialer Need to be Replaced?
October 2020 - Tent Heaters
Guidelines for Tent Heaters Used for Outdoor Dining and Fitness Activities
September 2020 - Tents
Cold Weather Guidance for Tents Used for Outdoor Dining and Fitness Activities
August 2020 - Plan Review
Commercial Fire Plans Submission Checklist
March 2020 - Fire Protection Systems
June 2013 - Fire Protection Equipment and Systems
Construction Permit Requirements