Organizations and individuals that can show a substantial materiel interest in the contents of National Fuel Gas Code and are willing to fully participate can seek to join the committee by submitting the Joint AGA and NFPA membership form. Membership is subject to committee vote (ASC Z223) and Standard Council action (NFPA 54) and balance requirements. These files are provided in PDF format. In most cases, the PDF files will open directly in your browser window. If you do not have the Acrobat PDF Reader, you may download it for free.