(1) Where a local authority deems it necessary, in any place of assembly, every point of access to an exit-way shall be clearly and prominently marked by an exit-sign.

(2) Except where written exemption has been obtained from the local authority the following illuminated signs in accordance with B.S. 2560 shall be exhibited in all places of assembly—

a) At or over each doorway normally used for public exit, an “EXIT” sign;

b) At or over each doorway not normally used for public exit which is available as a means of exit in cases of alarm, an “EMERGENCY EXIT” sign in accordance with B.S. 2560 except that the over-all dimensions of the lettered panel referred to in clause 2 of that standard shall be 400 millimetres by 300 millimetres and the word “EMERGENCY” may be in letters 75 millimetres in height and situated above the word “EXIT”;

c) At or over each doorway which does not lead to an exit a “NO EXIT” sign in accordance with B.S. 2560 except that the over-all dimensions of the length of panel referred to in clause 2 of that standard shall be 700 millimetres by 200 millimetres and the word “NO EXIT” shall be on one line.

(3) The colour filters for all illuminated signs exhibited in terms of subsection (2) and referred to in clause 5 of B.S. 2560 shall be—

a) Primary red No. 6 in the case of “EXIT” and “EMERGENCY EXIT” signs; and

a) Peacock blue No.15 in the case of “NO EXIT” signs

(4) All illuminated signs exhibited in terms of subsection (2) shall be illuminated from within the housing by two systems of electrical supply, one of which shall be the general lighting system and the second shall be the safety lighting system as defined in C.A.S. No. CCI and have a level of luminance as referred to in clause 9 of B.S. 2560 of between 15 and 35 candelas per square metre.

(5) All illuminated signs in terms of subsection (2) shall be in view of the public and shall be not less than 2 metres no more than 2,5 metres from the floor unless otherwise approved by the local authority.

(6) Notwithstanding the provisions of subsection (2) of this section the local authority may permit signs in accordance with B.S. 4218 or any other types of signs where appropriate, providing that the signs in the opinion of the local authority are legible and the level of luminance is acceptable.

(7) Directions to be followed in the case of fire printed “EMERGENCY EXIT” in red block-type letters of a minimum height of 75 millimetres, on a white background, shall be affixed in each building as the local authority may require and in such conspicuous places therein as the local authority may direct.