In 2018, the Government launched a call for tenders that allowed supporting 17 applications from municipalities or groupings of municipalities in the construction of the OCC, with funding of almost €1 million, through a financial incentives programme.

According to the DGAV, in 2019, 20 projects worth almost €1.13 million were selected, and 18 contracts for the construction of OCC have already been signed.

The DGAV noted that the projects were selected and the program contracts were signed as part of the Technical and Financial Cooperation between the Central Administration and the local sector.