2. In these Regulations “the principal Regulations” means the Building Regulations (Northern Ireland) 2000(1).
S.R. 2000 No. 389, as amended by S.R. 2005 No. 295, S.R. 2006 No. 355, S.R. 2006 No. 440, and S.R. 2008 No. 170 as amended by S.R. 2008 No. 241 and S.R. 2009 No. 369