The operator of a solvents installation who proposes to install abatement equipment must apply for a variation under regulation 46, and must not install that equipment until after any variation is granted.

Paragraph (1) does not apply where the total emissions of the solvents installation after installation will not exceed those which would have been permitted had the installation been subject to a permit containing conditions necessary to ensure compliance with Articles 59 to 62 of and, Annex VII to, the Industrial Emissions Directive.