There have been three alterations notices served by London Fire Brigade (LFB) since 2011 and there are notices in place for all London Underground sub-surface stations. Alteration notices require the person they are served upon to notify LFB of any changes the Responsible Person intends to make to premises, if this may adversely impact on fire safety. Alteration notices are one of a number of tools available to Fire and Rescue Services (FRS) in carrying out their regulatory role and their use is discretionary for each FRS. Historically, there have been limited use of alterations notices by LFB, with the focus instead being on education, engagement and a proactive inspection regime. Following the HMICFRS report, which specifically commented on the use of alteration notices in London, LFB Fire Safety is reconsidering where wider use of alteration notices may be beneficial in supporting fire safety in the built environment.