Joint Service Publication (JSP) 471, Defence Nuclear Accident Response, and JSP 538, Regulation of the Nuclear Weapon Programme, require exercises to be conducted to demonstrate Nuclear Accident Response capabilities. The Defence Nuclear Weapon Regulator assesses nuclear weapon transport accident response exercises in accordance with the criteria in JSP 471 and JSP 538, including the Nuclear Accident Response Organisation Standardisation Test.
An unclassified version of JSP 471 is available from the MOD website at:
http://www.mod.uk/DefenceInternet/AboutDefence/CorporatePublications/HealthandSafetyPublications/JSP471
A redacted copy of JSP 538 is available in the House of Commons Library.
Guidance on the selection of nuclear weapon convoy routes is set out in Joint Services Publication 483, Nuclear Weapon Logistic Movement and Associated Nuclear Accident Response. Factors in the assessment of routes include the type of road, its surroundings and its proximity to hazards. All potential routes for nuclear warhead convoys are assessed by a qualified team to ensure the safety and security of the operation and the public.