The following are links to the OPSI (formerly HMSO) website and the UN website
Explosive Specific
Manufacture and Storage of Explosives Regulations 2005
Control of Explosives Regulations 1991
General
Control of Major Accident Hazard Regulations 1999
Ammonium Nitrate Materials (High Nitrogen Content) Safety Regulations 2003
Fireworks
The Fireworks Regulations 2003
The Fireworks (Safety) Regulations 1996
Transport
Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations 2004
International