Regional Act No. 18 implementing Act No. 440 of 4 August 1978: "Provisions on the use of uncultivated, abandoned and lands insufficiently cultivated".

The Regional Act regulates the reclamation of lands in order to: (a) protect the soil and the hydrogeological balance; (b) encourage the rational use of agricultural surfaces. Article 2 gives the definition, on the one hand, of uncultivated or abandoned lands and, on the other hand, of lands insufficiently cultivated. The provisions established by this Act shall apply exclusively to uncultivated or abandoned lands and insufficiently cultivated lands falling within the zones classified into "agrarian cultures" (COL) and "grasslands under maintenace" (PRMA) by the maps related to the vegetation arrangement provided for in the Regional Territorial Coordinating Plan. The Act shall not apply to the lands defined by article 4, such as forests, lands intended for quarrying and discharges, lands that are necessary for commercial industrial activities. Article 5 regulates the allotment of lands to the beneficiaries thereby specified. Article 9 concerns the withdrawal of the allotment administrative provision. The Commission for the Use of Uncultivated Lands shall be established under each Province (art. 11).