9.2.4.1. Floors, walls and ceilings: The premises of sea food products processing establishments and sea food products canneries must satisfy the following requirements:(1) the floors must be constituted of a material free from cracks, waterproof, washable, non-slippery and resistant to any warping;
(1.1) the floors must have a drainage system for liquids and must be designed so that they are free from stagnant water;
(2) the ceilings and walls must be covered with a washable, smooth and rot-proof material; in addition, the wall covering must be constituted of a waterproof material resistant to warping;
(3) paragraph 2 applies to the walls of washrooms up to a height of 130 cm from the point where they join the floor;
(4) the joints between walls and those between the walls and the floors must be rounded.