3. (1) Subject to sub-article (2), and article 8, these Regulations apply to works, or a building as regards which a material change of use takes place, where the works commence or the material change of use takes place on or after the date referred to in article 2.

(2) These Regulations shall not apply to works, or a building as regards which a material change of use takes place, where—

(a) a Fire Safety Certificate under the Building Control Regulations, 1991 and 1994, in respect of the works or building, has been granted, and

(b) the works commence or the material change of use takes place between the date referred to in article 2 and the 31st day of December, 2002.