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Part B (Fire safety)

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These Approved Documents have been amended because of the introduction of the revised Approved Document supporting regulation 7 (Materials and Workmanship).
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Technical guidance on Schedule 1 of the Building Regulations about fire safety.

There are two parts to the guidance on Fire Safety.

Approved Document B Volume 1 covers Dwellinghouses and Volume 2 covers buildings other than dwellinghouses. Both volumes have five requirements:

  • warning and escape
  • internal fire spread
  • external fire spread
  • access
  • facilities for the fire service.

2016 changes

We announced changes to the Building Regulations to require automatic fire suppression systems in residential buildings (regulation 37A).

From 1 January 2016 the requirement will apply to new and converted:

  • houses
  • flats

Since 30 April 2014 the requirements have applied to new and converted:

  • care homes (as defined in the Care Standards Act 2000)
  • children’s residential homes
  • boarding houses
  • halls of residences
  • hostels other than hostels intended for temporary accommodation for leisure purposes (e.g. not Youth Hostels or backpacker’s hostels)

Amended Versions of Approved Documents B (Fire Safety) Volume 1 dwellinghouses and volume 2 buildings other than dwellinghouses will come into force on the 1 January 2016 to reflect the introduction of the requirements for dwellinghouses and flats.

2017 changes

Please note the amendment slip to Approved Document B (Volume 2) which comes into effect from 1 September 2017.

Archived versions of Approved Document B are available at the National Archives (external link).