Preamble
WHEREAS, it is necessary to further encourage the development of guano resources to help alleviate the fertilizer shortage and boost agricultural production; WHEREAS, the amendment of a certain provision of Decree No. 412, providing for the disposition, development and utilization of guano deposits for fertilizer purposes has been strongly recommended by the Director of Mines and Executive Director of the Fertilizer Industry Authority to further encourage the development of guano resources; NOW, THEREFORE, I, FERDINAND E. MARCOS, President of the Philippines, by virtue of the powers vested in me by the Constitution, do hereby decree and order the following: