Part II Requirements for Gas Conveyed to Prevent a Supply Emergency Northern Ireland Not yet in force Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. 3 para. 3 coming into force by Gas Safety (Management) 1997 reg. 1 Sch. 3 para. 4 coming into force by Gas Safety (Management) 1997 reg. 1 Sch. 3 Pt. II para. 1 coming into force by Gas Safety (Management) 1997 reg. 1 Sch. 3 Pt. II para. 2 coming into force by Gas Safety (Management) 1997 reg. 1 1Paragraph 1 2Paragraph 2 Part II