This page contains light bulbs that have ANSI codes between HTS and HTS. ANSI is the voice of the U.S. standards and conformity assessment system. ANSI oversees the creation, promulgation and use of thousands of norms and guidelines that directly impact businesses in nearly every sector including lighting. ANSI is also actively engaged in accrediting programs that assess conformance to standards – including globally-recognized cross-sector programs such as the ISO 9000 (quality) and ISO 14000 (environmental) management systems.