As of 1973, it was the principal Act on the subject of public health.

Its provisions repeal and re-enact most earlier statutes on that subject.

[4] In section 1(1)(a), the words "or community" were repealed by sections 22(3) and 66(8) of, and paragraph 3(1) of Schedule 9 to, and Schedule 18 to, the Local Government (Wales) Act 1994.

Section 6(3), from "and power" onwards, was repealed by section 48(2) of, and Part II of the Seventh Schedule to, the Charities Act 1960.

Section 8(2), from "and power" onwards, was repealed by section 48(2) of, and Part II of the Seventh Schedule to, the Charities Act 1960.

In section 9(1), the words "port health district, or a" were repealed by section 78(b) of, and Schedule 3 to the Public Health (Control of Disease) Act 1984.

In section 9(2), the words "the port health authority or" were repealed by section 78(b) of, and Schedule 3 to the Public Health (Control of Disease) Act 1984.

In section 9(3), the words "port health district" were repealed by section 78(b) of, and Schedule 3 to the Public Health (Control of Disease) Act 1984.

The words "port health authority or" were repealed by section 78(b) of, and Schedule 3 to the Public Health (Control of Disease) Act 1984.

The words "or workshop" in section 45(4) were repealed by Group 3 of Part XIV of Schedule 1 to the Statute Law (Repeals) Act 1993.

The words "factory, workshop, or" in section 46(1) were repealed by section 159(1) of, and the Fourth Schedule to, the Factories Act 1937.

The words "directly or" in section 48(1) were repealed by section 3(1) of, and Part I of Schedule 3 to, the Water Consolidation (Consequential Provisions) Act 1991.

The words "or the water authority for the area" in section 50(1) were repealed by section 190(3) of, and Part I of Schedule 27 to, the Water Act 1989.

In section 58(1), the words from "to persons in the building" to the end of the first paragraph (b), the words "in the first-mentioned case", and paragraph (ii), were repealed by section 86(3) of, and Part II of the Fifth Schedule to, the Public Health Act 1961.

In section 70(1)(b), the words from the beginning to "thirty-one, and", the words "or section fifteen of the Public Health Acts Amendment Act, 1907", and the words "in question", were repealed by section 86(3) of, and Part I of the Fifth Schedule to, the Public Health Act 1961.

In section 77(2)(b), the words from "or, in case of dispute" to the end were repealed by section 272(1) of, and Schedule 30 to, the Local Government Act 1972.

The words "or community" in section 87(1) were repealed by section 126(2) of, and paragraph 1(2)(b) of Schedule 4 to, the Public Health (Wales) Act 2017.

The words "other than urinals" in section 87(3)(c) were repealed by article 3 of the Sex Discrimination (Amendment of Legislation) Regulations 2008 (SI 2008/963).

In section 90(4), the words from "and any reference" onwards, repealed by section 3(1) of, and Part I of Schedule 3 to, the Water Consolidation (Consequential Provisions) Act 1991.