Paragraph 1 I1 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. 1 para. 1 coming into force by Pipelines Safety 1997 reg. 1 Sch. 1 para. 2 coming into force by Pipelines Safety 1997 reg. 1 Sch. 1 para. 3 coming into force by Pipelines Safety 1997 reg. 1 Sch. 1 para. 4 coming into force by Pipelines Safety 1997 reg. 1 Sch. 1 para. 5 coming into force by Pipelines Safety 1997 reg. 1 A pipeline for the conveyance of air, water vapour or steam. Annotations Commencement I1 Sch. 1 para. 1 in operation at 12.5.1997, see reg. 1 ← Schedule 1 Paragraph 1 Paragraph 2 →