The Bureau of Alcohol, Tobacco, Firearms and Explosives has finalized a recurring notification rule for sites that store explosives regulated under 27 CFR part 555. Effective October 26, 2026, a person already required to notify the local fire-safety authority when storage begins must send another written notice every 12 months. The final rule also requires written notice when storage ends at a site and requires copies of written notices to be kept for five years.

What the recurring notice must contain

The existing first-notice procedure remains in place. A covered person must notify the authority with jurisdiction for fire safety orally before the end of the day on which regulated storage begins, then provide written notice within 48 hours. That notification identifies the type of storage, the magazine capacity, and each storage site's location. The new annual notice carries forward that same core information instead of creating a different inventory report.

After the initial notice, the written update is due once every 12 months while regulated explosives remain at the site. The regulatory text gives a small timing window: the notice may be submitted by the end of the month in which the 12-month period is completed. If storage stops, the person must notify the same local fire-safety authority in writing within 48 hours. Each written notice must also state its date and the name, title, and agency of the fire-authority official who was notified.