| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | reg. 2(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(2) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | reg. 3 | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(3) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | reg. 4(1) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(4)(a) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | reg. 4(3)-(4) | added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(4)(b) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | reg. 6 | added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(5) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | Sch. 1 para. 1(1) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(6)(a) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | Sch. 1 Table 1 | words added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(6)(b)(i) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | Sch. 1 Table 1 item 1A | inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(6)(b)(ii) | Not yet | |
| Motor Vehicles (Authorised Weight) Regulations (Northern Ireland) 1999 | 1999 No. 258 | Sch. 1 para. 1A | inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 2(6)(c) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words omitted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(c)(i) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | word omitted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(c)(ii) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(c)(iii) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(d) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(e) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 2(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(2)(f) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 6(1) Table item 5A | inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(3)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 6(10)(a) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(3)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 7(1) Table | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(4)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 7(4) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(4)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 49(2)(a) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(5)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 49(2A) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(5)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 79(9) | added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(6) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 88(2) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(7) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 89(3) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(8) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 93(5) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(9) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 109(2) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(10)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 109(2A) | inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(10)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | reg. 109(4) | omitted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(10)(c) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 heading | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(a) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 4 | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(b) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 7(1) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(c)(i) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 7(4) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(c)(ii) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 11(1) | words added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(d)(i)(aa) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 11(1) | words inserted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(d)(i)(bb) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 11(1) | words added | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(d)(i)(cc) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 11(2) | substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(d)(ii) | Not yet | |
| Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 | 1999 No. 454 | Sch. 14 para. 11(6) | words substituted | The Motor Vehicles (Authorised Weight) and (Construction and Use) (Amendment) Regulations (Northern Ireland) 2017 | 2017 No. 191 | reg. 3(11)(d)(iii) | Not yet | |