The Environmental Protection Agency (EPA) has proposed changes to the 1988 Underground Storage Tank Regulations in 40 CFR 280.  The proposed changes include adding secondary containment requirements for new and replaced tanks and piping; adding operator training requirements; adding periodic operation and maintenance requirements for UST systems; adding new release prevention and detection technologies; updating codes of practice; and updating state program approval requirements. The agency said it expects these changes will protect human health and the environment by preventing underground storage tank releases and quickly detecting them if they do occur.  To read the proposed changes please go to EPA Proposed regulations.  All comments are due by February 16, 2012.