Nearly 20% of the french population is not connected to the public sewage collection network and must be equipped with non-collective sanitation facilities that are particularly suitable for dispersed settlements.

Today, couples have the choice between several unions: marriage , cohabitation and the Pacs. Each status has its own characteristics, to study carefully before embarking on a life of two.

IFL (or "Interest Free Loan") is a government regulated loan, with no interest or administration fees. It is granted depended on the conditions for resources, to acquire a main residence or financing certain works.

Collective sanitation and non-collective sanitation systems are important for local elected officials for their environmental consequences. They often deal with these issues through intermunicipal structures.

Sustainable development is a mode of economic development that seeks to combine economic and social progress with the preservation of the environment. It is important in water management, housing, urban planning, noise.

The rural road has three cumulative criteria: it belongs to the communes, is assigned to the use of the public, and is not classified as communal way. It benefits from a particular legal regime.

A development permit is an administrative act which allows the administration to monitor the works, installations, and developments, which shall impact the use of the land on a given site.