3.
All new storage installations at terminals, where vapour recovery is required according to Article 4 of the Directive (see Annex II) must be either: fixed-roof tanks connected to the vapour recovery unit in conformity with the requirements of Annex II; or (b) designed with a floating roof, either external or internal, equipped with primary and secondary seals to meet the performance requirements set down in point 2.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-10 · Text as adopted (Official Journal); later amendments are not incorporated in this text.