For eksisterende enkeltskrogede olietankskibe, som er leveret efter den 1. juni 1982, eller som er leveret før den 1. juni 1982, men er blevet ombygget for at opfylde kravene i MARPOL 73/78 om separate ballasttanke og beskyttende placering heraf, udløber fristen senest i 2026.
For existing single-hull oil tankers delivered after 1 June 1982 or those delivered before 1 June 1982 and which have been converted to comply with the requirements of MARPOL 73/78 on segregated ballast tanks and their protective location, this deadline will be reached at the latest in 2026.