# Commission Implementing Regulation (EU) No 404/2011 of 8 April 2011 laying down detailed rules for the implementation of Council Regulation (EC) No 1224/2009 establishing a Community control system for ensuring compliance with the rules of the Common Fisheries Policy, Division 4: The steps of the boarding ladder shall:

Extent: E+W+S+N.I.

(a) be of hardwood or other material of equivalent properties, made in one piece free of knots; the four lowest steps may be made of rubber of sufficient strength and stiffness, or of other suitable material of equivalent characteristics;
(b) have an efficient non-slip surface;
(c) be not less than 480 mm long, 115 mm wide, and 23 mm in thickness, excluding any non-slip device or grooving;
(d) be equally spaced not less than 300 mm or more than 380 mm apart;
(e) be secured in such a manner that they will remain horizontal.

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Source: https://www.legislation.gov.uk/eur/2011/404/annex/XXIX/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-404/annex-XXIX/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.