Dokar Gurbacewar Mai na shekarar 1973 ko Dokar Gurɓacewar Mai na 1973, 33 USC Babi na 20 §§ 1001-1011, wata dokar tarayya ce ta Amurka wacce ta gyara dokar Amurka ta 75 . . Dokar Majalisar ta dore da ƙudirin Amurka na sarrafa fitar da gurbataccen mai daga jiragen ruwa da kuma amincewa da takunkumin da aka yi wa yankunan bakin teku a cikin ruwa masu kan iyaka .
Majalisar dokokinƙasar Amurka ta 93 ta zartar da dokar ta HR 5451 kuma shugaban Amurka na 37 Richard Nixon ya kuma zartar a ranar 4 ga Oktoban shekarata 1973.
Yarjejeniyar ƙasa da ƙasa don hana gurɓacewar teku ta Oil (OILPOL) taron ƙasa da ƙasa ne da Burtaniya ta shirya a shekarata 1954. An yi taron a London, Ingila daga 26 ga Afrilun, shekarar 1954 zuwa 12 ga Mayu, shekarata 1954. An kuma kira taron na ƙasa da ƙasa ne domin sanin yadda ake zubar da dattin datti wanda zai iya haifar da gurbacewar yanayi a cikin tekun .
Yarjejeniyar ƙasa da ƙasa don rigakafin gurɓacewar teku ta hanyar mai, a shekarata 1954 an rubuta ainihin rubutun cikin Ingilishi da Faransanci . An gyara ƙa'idar muhalli a shekarun 1962, 1969, da 1971.
gyare-gyaren OILPOL na shekarata 1971 sun ƙaddamar da hukunce-hukuncen teku waɗanda ba za a iya soke su ba don Babban Barrier Reef da ke cikin Tekun Coral . gyare-gyaren yarjejeniyar kasa da kasa sun gabatar da tanadin kula da ƙira don jiragen ruwa masu tafiya cikin teku waɗanda ke ƙayyadaddun tsarin samar da tankunan ruwa da iyakokin girman tankunan jiragen ruwa .
Canje - canjen na shekarata 1973 ya jaddada yarjejeniyar ƙasa da ƙasa don rigakafin gurɓacewar ruwa ta hanyar mai, 1954 ta hanyar bin gyare-gyaren yarjejeniyar ta shekarun 1969 da 1971.
An soke dokar jama'a ta Amurka ta shekarata 1973 ta hanyar kafa dokar hana gurɓacewar ruwa daga jiragen ruwa a ranar 21 ga Oktoba, shekarar 1980.