Luanda — The director of the legal office of the Environment Ministry, Miranda Kiala, last Wednesday, in Luanda, exhorted oil companies to be careful and rigorous in the disposial of oil residues on land, in view of what is outlined in the Executive Decree number 97/14, which is to enter in effect in July this year. The source explained that this Executive Decree from the Oil Ministry, also dubbed "Zero Discharge", prohibits the dumping of residues from crude-oil exploration activities into the sea, instead they must be taken onshore dealt with appropriately. In an interview to ANGOP, Miranda Kiala reminded that oil companies must also abide by the environmental legislation in force in Angola, such as the mentioned Executive Decree, for in doing otherwise they can be faced with a penalty. "We hope the oil companies are getting ready to implement this regulation, after the time was given to them for their technological preparation (...)", Miranda Kiala explained, adding that the inspection work is going to be rigorous. In the ambit of this issue, the environmental supervisor of the Chevron oil company, Daniel João, has said to ANGOP that Chevron is ready to adopt the recommended practices in the management of oil residues as a product of its activities in this country, both on the sea and land. "Up to now we are still operating under the Executive Decree Number 12/05 which enables the discharge (of residues) in the ocean. As from July this year it will be forbidden the discharge on the ocean and Chevron is prepared for this", he assured.