The National Insurance and Industrial Injuries (Classification, Contributions and Collection of Contributions) Amendment Regulations 1971
1971年国民保险及工伤（分类、缴费及缴费）修订规例

The National Insurance and Industrial Injuries (Collection of Contributions) Amendment Regulations 1971
1971年国民保险及工伤（缴费）修订规例

The National Insurance and Industrial Injuries (Collection of Contributions) Amendment Regulations 1973
1973年国民保险及工伤（缴费）修订规例

The National Insurance and Industrial Injuries (Classification and Collection of Contributions) Amendment Regulations 1973
1973年国民保险及工伤（分类及缴费）修订规例

The National Insurance and Industrial Injuries (Classification and Collection of Contributions) Amendment Regulations 1974
1974年国民保险及工伤（分类及缴费）修订规例

The National Insurance (Industrial Injuries) (Refund of Contributions) Regulations (Northern Ireland) 1948
1948年国家保险（工伤）（退还缴款）条例（北爱尔兰）

The National Insurance and Industrial Injuries (Collection of Contributions) Regulations (Northern Ireland) 1948
1948年国家保险和工伤（缴费）条例（北爱尔兰）

The National Insurance and Industrial Injuries (Classification, Contributions and Collection of Contributions) Amendment Regulations (Northern Ireland) 1971
1971年国家保险和工伤（分类、缴费和缴费）修正条例（北爱尔兰）

The National Insurance and Industrial Injuries (Collection of Contributions) Amendment Regulations (Northern Ireland) 1971
1971年国家保险和工伤（缴费）修正条例（北爱尔兰）

The National Insurance and Industrial Injuries (Collection of Contributions) Amendment Regulations (Northern Ireland) 1959
1959年国家保险和工伤（缴费）修正条例（北爱尔兰）

The National Insurance and Industrial Injuries (Classification and Collection of Contributions) Amendment Regulations (Northern Ireland) 1972
1972年国家保险和工伤（分类和缴费）修正条例（北爱尔兰）

The National Insurance and Industrial Injuries (Classification, and Collection of Contributions) Amendment Regulations (Northern Ireland) 1969
1969年国家保险和工伤（分类和缴费）修正条例（北爱尔兰）

The National Insurance and Industrial Injuries (Classification and Collection of Contributions) Amendment Regulations (Northern Ireland) 1973
1973年国家保险和工伤（分类和缴费）修正条例（北爱尔兰）