The Confederation shall pay subsidies to the cantons under Article 32e paragraphs 3 and 4 EPA for:
the investigation, monitoring and remediation of polluted sites;
the investigation, monitoring and remediation of polluted sites at shooting ranges; and
the investigation of sites that are not found to be polluted.
It shall also pay subsidies for a clearly defined area of a polluted site if that area fulfils the requirements for a subsidy and further measures are not made more difficult or impossible.