1 The cantons shall determine responsibilities and procedures.
2 They shall regulate the way in which communes, other bodies responsible for activities which have a spatial impact and organisations for environmental protection and for the protection of nature and cultural heritage that have a right to appeal in accordance with Article 55 of the Environmental Protection Act of 7 October 198331 and with Article 12 of the Federal Act of 1 July 196632 on the Protection of Nature and Cultural Heritage (NCHA) cooperate in drawing up the structure plans.33