The Maritime and Coastguard Agency (MCA) said polyisobutene (PIB) can be released under certain conditions.

BBC: RSPB calls for ban on seabird pollutant

More than 300 birds were rescued after being found covered in glue-like polyisobutene (PIB) on the south coast.

BBC: Birds oil pollution ship 'cannot be found'

Hundreds of birds have been left covered in polyisobutene (PIB) in two incidents on the south coast this year.

BBC: Calls to stop PIB discharges at sea after bird deaths

Hundreds of birds, mostly guillemots, were washed up on the south coast of England three weeks ago, covered in glue-like polyisobutene (PIB).

BBC: First birds released after south coast oil rescue

More than 300 birds, mainly guillemots but some razorbills, were taken in by the RSPCA after being found covered in glue-like polyisobutene (PIB).

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