Business demands may compel a ship owner to breach certain warranties in the policy. This clause provides a safeguard to the ship owner in such circumstances, provided due notice is given to the insurers and an appropriate premium is paid. The clause also gives underwriters the right of amending the cover should the breach in their opinion warrant such amendment. The breaches which are “held covered” are warranty as to cargo, trade, locality, towage, salvage services or date of sailing only.