CSA America certifies individuals who have been trained for CNG Cylinder visual inspection. Visit our web site to locate a training facility near you and to learn more about certification in this field. CSA America, Inc. is a standards writing body in the United States for appliances and accessories fuelled by natural, liquified petroleum and hydrogen gases. CSA America, Inc. has over 75 years experience in the development of standards. We are accredited by the American National Standards Institute (ANSI) under the Committee, Canvass and Organizational Methods of standards development. CSA America, Inc. currently maintains approximately 80 different standards.