91.29—Hatches.
(a)
Animals may be placed on hatches on exposed decks on an ocean vessel if the pens or stalls are securely lashed down.
(b)
Animals may be placed on hatches on underdecks on an ocean vessel provided the height requirements of § 91.25 (e) and (f) are met and sufficient space shall be left clear on such hatches for passageway across ship.
(c)
On all hatches on which animals are carried and under which hay and feed or animals are stowed, sufficient space shall be left clear for the proper removal and handling of such hay and feed and animal carcasses. Such hatches shall be watertight.