4.—(1) Column 1 of Part 1 of Schedule 1 to the principal Regulations (list of prescribed diseases and the occupations for which they are prescribed)(1) is amended in accordance with paragraphs (2) to (6).
(2) For A3, substitute—
“A3
(a)Dysbarism, including decompression sickness and barotrauma;
(b)Osteonecrosis.”.
(3) For B1, substitute—
“B1
(a)Cutaneous anthrax;
(b)Pulmonary anthrax.”.
(4) For B4, substitute—
“B4
(a)Cutaneous larva migrans;
(b)Iron deficiency anaemia caused by gastrointestinal infection by hookworm.”.
(5) After “C32 Carcinoma of the nasal cavity or associated air sinuses (nasal carcinoma)”, insert “C33 Chloracne.”.
(6) In D12—
(a)for “(a) chronic bronchitis; or (b) emphysema; or (c) both,” substitute “chronic obstructive pulmonary disease.”;
(b)after sub-paragraph (ii) insert “The value of one litre in (i) and (ii) shall be construed as fixed and shall not vary by virtue of any treatment or treatments.”.
(7) Column 2 of Part 1 of Schedule 1 to the principal Regulations is amended in accordance with paragraphs (8) and (9).
(8) In B5 Tuberculosis, for “Contact with a source of tuberculous infection” substitute—
“B5
Contact with a source of tuberculosis while undertaking—
(a)work in a hospital, mortuary in which post mortems are conducted, or laboratory; or
(b)work in any other workplace.”.
(9) After C32 insert “Exposure to a substance causing chloracne.”.