Amazon.com Inc has been given a security clearance by the U.S. government that will make it easier for federal agencies to use its cloud computing services. Amazon Web Services, known as AWS, was certified to operate as a cloud service provider for three years under the government’s new FedRAMP program. The accreditation covers all AWS data centers in the United States, the company said on Tuesday. “This will cut the cost and time for agencies to deploy our systems,” said Teresa Carlson, vice president of Worldwide Public Sector at AWS. “It cuts costs for AWS too.” Amazon, the world’s largest online retailer, has moved aggressively into the business of renting remote computing, storage and other IT services in recent years through AWS. The business has been a hit with startups, but the company is now going after big corporations and government agencies, a much larger opportunity.