Protection of the Environment Operations (Clean Air) Regulation 2022
82Vapour control
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82 Vapour control
82 Vapour control
(1) A large storage tank in which there is a volatile organic liquid must be fitted with—
(a) a vapour disposal system, or
(b) a vapour recovery system.
(2) However, if the volatile organic liquid has a vapour pressure of 75kPa or less, the large storage tank may instead be fitted with—
(a) an internal floating roof or an external domed floating roof that—
(i) does not permit the escape of vapour through the roof, and
(ii) otherwise complies with section 83, or
(b) for a tank commissioned before 1 July 2024—a floating roof or a floating cover and an external fixed roof that—
(i) does not permit the escape of vapour through the roof, and
(ii) otherwise complies with sections 84 and 85.