.4 Glavni pogonski stroji in vsi pomožni stroji, nujni za pogon in varnost ladje, so po vgradnji v ladjo zasnovani tako, da delujejo, kadar je ladja v pokončnem položaju in kadar je nagnjena pod kotom do vključno 15 na obe strani v statičnih pogojih in 22,5 na obe strani v dinamičnih pogojih (bočno zibanje) ter hkrati nagnjena za 7,5 s premcem ali krmo v dinamičnih pogojih (vzdolžno zibanje).
4 Main propulsion machinery and all auxiliary machinery essential to the propulsion and the safety of the ship shall, as fitted in the ship, be designed to operate when the ship is upright and when inclined at any angle of list up to and including 15° either way under static conditions and 22,5° under dynamic conditions (rolling) either way and simultaneously inclined dynamically (pitching) 7,5° by bow or stern.