What's New : 30 Days : Environment
Environmental issues in transportation. Air quality, water quality. Transportation related noise and vibration. Preservation of historic and archeological sites in transportation projects.
National Center for Atmospheric Research - Climate Change [31295] 
Where climatologists are building models of atmospheric change
CFR - Noise References [37586] Text of sections from the United States Code of Federal Regulations (CFR) that may be applicable to noise issues
CFR Title 14 Chapter I Subchapter I Part 150 Airport Compatibility Planning [37580] Text of the Federal Aviation Administration regulations for Airport Noise and Compatibility Planning
CFR Title 40 Chapter I Subchapter G Noise Abatement Programs [37576] Covers standards for transportation equipment, motor carriers, low-noise-emission products, and construction equipment
CFR Title 49 Chapter II Part 210 Railroad Noise Emission Compliance [37582] Text of the Railroad Noise Emission Compliance Regulations from the Code of Federal Regulations
CFR Title 49 Part 325 Compliance with Interstate Motor Carrier Noise Emission Standards [37584] Text of the Interstate Motor Carrier Noise Emission Compliance Regulations from the Code of Federal Regulations
City & County Noise Ordinances - Examples [26264] The text of noise ordinances in various cities and counties within the United States
Code - Noise References in the United States Code [37587] Text of sections from the United States Code (USC) that may be applicable to noise issues
EPA - Noise Document Collection [37585] Noise-related guidance from the US Environmental Protection Agency
FAA - Airport Noise Compatibility Planning Toolkit [37578] For airport noise compatibility planning around the nation's airports
FAA - Aviation Noise Abatement Policy ![[pdf]](graphics/file_pdf.gif){kind=small}
[37579] Text of the Federal Aviation Administration's policy related to aviation noise abatement
FHWA Highway Construction Noise Handbook [30408] Handbook explores factors and issues in dealing with construction noise.
FICAN: Federal Interagency Committee on Aviation Noise [37581] Forum for debate on research needs to better understand, predict and control the effects of aviation noise
Final Rule on the Use of Locomotive Horns at Highway-Rail Grade Crossings [37583] Text of the rule plus guidance on the Quiet Zone Creation Process
Guidelines for an Urban Noise Ordinance [37588] This comprehensive treatment of noise classification and tool for noise abatement will help you create an ordinance
Highway Traffic Noise in the USA [26257] Information about highway traffic noise and highway noise barriers
Noise Emission from Railway Traffic [30357] How railway noise is generated and to what extent different measures at the noise source can reduce emissions.
Railroad - High Speed Ground Transportation Noise and Vibration Impact Assessment Manual [37592] For use in planning high-speed passenger train projects
Railroad - Horn Noise Assessment [37591] An analytic model to assess the noise impact of train horns in the vicinity of highway-rail grade crossings
State Environmental Noise Statutes [26258] Summaries of state-wide noise and watercraft noise regulations
Documents on drinking water quality such as reports, regulations, guides, news
Analytical Methods for Drinking Water and Laboratory Certification [9868] Information about analytical methods approved for compliance monitoring of drinking water
Drinking Water - Emergency Preparedness [20212] Identify some of the issues you may face preparing for, during and after an event
Drinking Water Contaminants [9843] Fact sheets about chemicals that may be found in some public or private drinking water supplies
EPA Drinking Water Regulations and Guidance [9861] Regulated contaminants: National Primary Drinking Water Standards, current rules, etc.
EPA Public Drinking Water System Programs [9855] Through the Public Water System Supervision (PWSS) program, EPA implements drinking water standards
National Water Quality Standards Database [26946] State regs, waterbody names, state numeric water quality criteria, and EPA recommended numeric water quality criteria
Private Drinking Water Wells [9857] Consumer advice for testing and protecting private drinking water wells
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Climate Change
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