Mainstream tankers risk being caught in shadow fleet STS crackdown, says Intertanko 11 July 2023 Independent owners say standard operating procedures could turn ships dark during transfersAuthor: Capt. Johnhttps://www.tradewindsnews.com/tankers/mainstream-tankers-risk-being-caught-in-shadow-fleet-sts-crackdown-says-intertanko/2-1-1484175