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Operational Circulars 400-499

Number Title
OC 415/9 The boreholes sites and operations regulations 1995
OC 431/13 Chemical reactor safety
OC 433/4 Control of exposure to fume at coke ovens advice to employers
OC 438/4 Medium pressure ductile iron gas pipes not owned by Transco
OC 440/28 The gas safety (installation and use) regulations 1998, the gas safety (management) regulations 1996 and the pipelines safety regulations 1996
OC 440/31 Enforcement of gas safety at rented residential accommodation
OC 440/34 Gas safety in touring caravans, motor-caravans, caravan holiday-homes and residential park-homes
OC 440/35 Gas safety - Alerting members of the public to installer incompetence
OC 440/37 Dangerous Gas Fittings (Gas Industry Unsafe Situations Procedure)
OC 449/7 Prevention or creation of liquid slugs in flarelines
OC 480/2 The electricity at work regulations 1989
OC 482/2 Electrical safety of independent low-voltage AC
OC 483/27 Oil -filled electrical distribution and other switchgear
OC 489/6 The plugs and sockets etc (safety) regulations 1994
OC 492/2 The drawing into ventilated electrical tools of conductive dusts
Updated 2019-01-30