It is said that ignorance is not the excuse for violating the law. One should be aware of the laws which are applicable to the usage or consumption of the .
HSE Approved codes of practice and guidance
The Gas Safety (Installation and Use) Regulations 1998 came into power on 31 October 1998. It took over the earlier set of laws called Gas Safety (Installation and Use) Regulations 1994.
The Gas Safety (Installation and Use) Regulations 1998 are with reference to :
1safe installation,
2maintenance and
3use of ?????????..gas systems
This gas system could be in either domestic premises or commercial premises.
The Gas Safety (Installation and Use) Regulations 1998 consider a wide range of people responsible to the law. This wide range includes :
1People installing gas appliances and other gas fittings.
2People servicing gas appliances and other gas fittings.
3People maintaining or repairing gas appliances and other gas fittings.
4People supplying gas
5People using gas including the landlords
The responsibility of enforcing the regulations is jointly shared by HSE and the local authorities.
The Gas Safety (Installation and Use) Regulations strive for preventing injury to consumers and the public from either fire and explosion or carbon monoxide.
The Gas Safety (Installation and Use) Regulations specify that :
1Gas installation businesses or individual gas installers be a member of CORGI
2CORGI registration is compulsory for anyone carrying out work on gas fittings or
3appliances as part of his/her business.
4CORGI monitors the capability of businesses and their operatives to undertake gas work safely
5CORGI should investigate complaints against registered installers.

Landlords
1Landlords should arrange maintenance of all appliances, pipe-work and flues by a CORGI-registered installer
2Landlords should arrange for a CORGI-registered installer for the annual gas safety check up.
3The landlord should preserve the safety check records for 2 years. He / She should issue a copy of it to each tenant with 28 days
4Gas appliances should be serviced regularly for safety

Some type of gas appliances do not fully comply with the testing requirements as set by the regulations. When gas installers want to use a different testing method to check the safe operation of these kind of gas systems there is Exemption from Gas Safety (Installation and Use) Regulations - Regulation 26(9)(c).
The input of heat and the operating pressure needs to be checked.
On 16th June 2008 the exemption came into force and it is applicable to the appliances that:
* air/gas ratio technology should be incorporated.
* unmetered gas supply connection
* Certificate mentioning exemption