art_20__para_1__text_1
When serious environmental problems exist, the Member State responsible may limit or refuse the exercise of traffic rights, in particular when other modes of transport provide appropriate levels of service. The measure shall be non-discriminatory, shall not distort competition between air carriers, shall not be more restrictive than necessary to relieve the problems, and shall have a limited period of validity, not exceeding three years, after which it shall be reviewed.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-30 · Text as adopted (Official Journal); later amendments are not incorporated in this text.