New regulations / restrictions for tankers at Turkish Straits are as follows:

Dardanelles Strait:
Tankers up to 199,9 Meters Loa: No daylight restriction
Tankers Over 199,9 Meters Loa: Daylight restricted
Pilotage: Still optional but strongly recommended


Bosphorous Strait:
Tankers Up To 199,9 Meters Loa: No daylight restriction
Tankers Over 199,9 Meters Loa: Daylight restricted / One way traffic
Pilotage: Still optional but strongly recommended
Escord Tug For Tankers Loa over 249,99 meters: Obligatory