The PCAET sets out the national and European targets pertaining to climate, air and energy at French territory level.
Its contents, set by the law, must establish an inventory of territorial environmental practices, then propose a territorial strategy combined with a plan of actions to improve energy efficiency, develop renewable energies and help to reduce climate change, and a device for monitoring and assessing measures initiated. The objective of the PCAET is to establish a coherent and territory-wide climate-air-energy policy in line with national targets. It is revised every six years.
In 2016, the PCAET replaced the Territorial Climate-Energy Plan to incorporate air quality issues. It is now mandatory for all interconnected communities of more than 20,000 inhabitants. Below 20,000 inhabitants, voluntary PCAETs can be drawn up. Their content may then be similar to that of the mandatory PCAETs, but Local Intercommunity Urban Planning plans (PLUi) will not be obliged to take them into account.