(a) All full-size and non-full-size cribs must have:(1) A firm, flat mattress that snugly fits the sides of the crib and that is designed specifically for use with the crib model number. The mattress must not be supplemented with additional foam material or pads.(2) Sheets that fit snugly and do not present an entanglement hazard;(3) A mattress that is waterproof or washable;(4) Secure mattress support hangers, and no loose hardware or improperly installed or damaged parts;(5) A maximum of 2 3/8 inches between crib slats or poles;(6) No corner posts over 1/16 inch above the end panels;(7) No cutout areas in the headboard or footboard that would entrap an infant's head or body;(8) Drop gates, if present, which fasten securely and cannot be opened by a child;(9) Documentation that each crib meets the applicable federal rules at