The lack of a national trucking licence , for example , means hauliers must get approval from each province to move goods across the country and unload them on to different trucks at each border-delaying delivery and increasing spoilage and pilfering .
Since 1963 , fda has passed rules permitting irradiation to curb insects in foods and microorganisms in spices , control parasite contamination in pork , and retard spoilage in fruits and vegetables .
