Related Links The websites listed below may contain useful information related to environmental monitoring. You will exit the NC DWR Water Sciences Section website when you click on any of the following. Link Description US EPA The United States Environmental Protection Agency national website. This site contains information about EPA programs, environmental issues and current events, laws, regulations and links to other government agencies. EPA Region 4 EPA Region 4 serves AL, FL, GA, SC, NC, TN, KY, MS and 6 tribes. This site contains Clean Water Act analytical methods, SESD field measurement and sampling procedures, quality system procedures, guidance documents and information about conferences and workshops. Code of Federal Regulations A searchable listing of the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government. The Federal Register A searchable listing of the official daily publication for rules, proposed rules and notices of Federal agencies and oranizations, as well as executive orders and other presidential documents published by the Office of the Federal Register, National Archives and Records Administration (NARA). 503 Guidance Control of Pathogens and Vector Attraction in Sewage Sludge; Under 40 CFR Part 503 NEMI The National Environmental Methods Index. A US government-sponsored database and expert system to help compare the performance and relative cost of analytical, test and sampling methods. The NELAC Institute (TNI) The National Environmental Laboraotry Accreditation Conference Insititure website. This site contains information about the his non-profit organization whose mission is to foster the generation of environmental data of known and documented qulsity through an open, inclusive, and transparent process that is responsive to the needs of the community, membership information, the TNI standards, policies, procedures, publications and presentations. A2LA The American Association for Laboratory Accreditation website. A non-profit, non-governmental public service, membership society which offers programs for accreditation of testing laboratories and proficiency testing providers. A list of approved proficiency testing providers can be found here. ANAB Previously ACLASS. ANSI-ASQ National Accreditation Board. A list of approved proficiency testing providers can be found here. NC AWWA/WEA The North Carolina American Water Works Association/Water Environment Association webiste. A volunteer association dedicated to providing water and wastewater education, training and services in an effort to protect public health and the environment. NCRWA The North Carolina Rural Water Association website. A non-profit organization dedicated to providing services related to operation of rural water and wastewater systems. SW-846 Online EPA Waste's official compendium of analytical and sampling methods that have been evaluated and approved for use in complying with RCRA regulations. All of the documents found in the Third Edition of SW-846, as updated by Updates I, II, IIA, IIB, III, IIIA, IIIB, IVA and IVB are located on this site. FAQ for SW-846 EPA developed frequent questions about the SW-846 Test Methods Compendium and associated documents. If you see something that should be corrected or have any questions about the content of the site, contact the site administrator; or (919) 733- 3908 x259.