In response to calls for agrarian reform, President Aquino issued Presidential Proclamation 131 and Executive Order 229 on 22 July 1987, which outlined her land reform program, which included sugar lands. In 1988, with the backing of Aquino, the new Congress of the Philippines passed Republic Act No. 6657, more popularly known as the "Comprehensive Agrarian Reform Law". The law paved the way for the redistribution of agricultural lands to tenant-farmers from landowners, who were paid in exchange by the government through just compensation but was also allowed to retain not more than five hectares of land. However, corporate landowners were also allowed under the law to "voluntarily divest a proportion of their capital stock, equity or participation in favor of their workers or other qualified beneficiaries", in lieu of turning over their land to the government for redistribution. Despite the flaws in the law, the Supreme Court upheld its constitutionality in 1989, declaring that the implementation of the comprehensive agrarian reform program (CARP) provided by the said law, was "a revolutionary kind of expropriation".