| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(i) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(ii) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(iii) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(iv) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(v) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(1) | words omitted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(a)(vi) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(2)(a)(iv)(iva) | substituted for reg. 3(2)(a)(iv) | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(b) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(3)(a)(iv)(iva) | substituted for reg. 3(3)(a)(iv) | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(c) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(7) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(d)(i) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(7) | word omitted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(d)(ii) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 3(7)(c) | omitted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(2)(d)(iii) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 4(1) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(3)(a) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 4(6) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(3)(b) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 4(7) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(3)(a) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 8(2)(e)-(g) | substituted for reg. 8(2)(e)(f) | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(4) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 24(2) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(5) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 29(1) | substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(6)(a) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 29(5) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(6)(b) | Yes | |
| The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk) Regulations 2018 | 2018 No. 68 | reg. 30(5) | words substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 2(7) | Yes | |
| The Merchant Shipping (Prevention of Oil Pollution) Regulations 2019 | 2019 No. 42 | reg. 20(3) | substituted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 3(2)(a) | Yes | |
| The Merchant Shipping (Prevention of Oil Pollution) Regulations 2019 | 2019 No. 42 | reg. 20(8) | words inserted | The Merchant Shipping (Prevention of Pollution from Noxious Liquid Substances in Bulk and Prevention of Oil Pollution) (Amendment) Regulations 2021 | 2021 No. 818 | reg. 3(2)(b) | Yes | |