Schedule 4, paragraph 1: Utility activities: gas and heat Paragraph 1 sets out when activities associated with gas and heat are utilities activities.
Atodlen 4, paragraff 1: Gweithgareddau cyfleustod: nwy a gwres Mae paragraff 1 yn nodi pryd mae gweithgareddau sy'n gysylltiedig â nwy a gwres yn weithgareddau cyfleustod.