• the luminaire is a full cutoff luminaire when the rated output of the luminaire is greater than 1,800 lumens ;
• the luminaire ' s maximum illuminance does not exceed the minimum illuminance recommended for that purpose by the Illuminating Engineering Society of America or the federal Department of Transportation ; and
• the Director of the Bureau of General Services ensures that consideration is given to minimizing glare and light trespass .
The law established exceptions to these requirements , which are only permitted when one of the following is present :
• federal laws , rules and regulations take precedence over these provisions ; or
• the Director of the Bureau of General Services determines that there is a compelling safety interest that cannot be addressed by any other method .
Sources : http :// www . legislativestatemap . org / Maine . html ; http :// www . mainelegislature . org / legis / statutes / 5 / title5sec1769 . html
State of Minnesota In 2013 , the State of Minnesota amended a law previously enacted that provides for the development of a model lighting ordinance and grants authority to local governments to adopt , adapt , and implement a lighting ordinance . Chapter 16B , Section 328 of the Minnesota Statutes establishes the authority for local governments to develop this ordinance to regulate lighting to reduce light pollution . There is no opt-in or opt-out option for this law ; therefore , the towns , cities , and counties shall comply with it . The law identifies various elements to assist the communities in developing a comprehensive lighting ordinance to assure a good sustainable ordinance is developed for the community and the overall goal of the reduction of light pollution is achieved from all types of development including residential , commercial , and industrial . The model ordinance must address the following elements :
• standards for lighting on private property ; outdoor advertising ; lighting on commercial , industrial , or institutional property ; canopies covering fueling stations ; and public streets , sidewalks , and alleys ;
• how illumination levels should be measured ;
• possible exemptions , such as for temporary emergency or hazard lighting ;
• recommended elements for an exterior lighting plan for a development ;
• treatment of nonconforming lighting ;
• lighting standards that may apply in special subdistricts ;
• light pole maximum heights ; and
• light trespass .
Similar to other states , Minnesota requires that state-funded outdoor lighting fixtures be fully cutoff luminaires ( lamp and fixture ) and not generate an output greater than 1,800 lumens . Additionally , illuminance should comply with the recommended minimum standards for illuminance for the intended purpose of the light as recognized by national standards .
The elements identified in the law for the model lighting ordinance are a good example of a comprehensive ordinance for reducing light pollution . However , an assessment of the element prescribed above omits the placement or siting of luminaires from one another — the proximity of one luminaire to another can also generate wasteful light emission .
Sources : http :// www . legislativestatemap . org / Minnesota . html ; https :// www . revisor . mn . gov / statutes /? id = 16b . 328
State of New Hampshire In 2009 , the State of New Hampshire enacted House Bill 585 , an ac local ordinances or regulations to decrease energy consumption gen and glare , and to preserve dark skies wherever practical . Similar to person from replacing or installing outdoor lighting fixtures with sta requirements . The following are requirements stipulated by the law
• the luminaire is a fully shielded luminaire when the rated o lumens ;
• the maximum illuminance at the designated surface does n recommended for that purpose by the Illuminating Enginee Highway Administration ; and
• the director of the agency responsible for the funding of su illuminated infrastructure ensures that consideration is give
The bill established exceptions to these requirements and are only p
• compliance would create a conflict with federal laws or reg
• the director of the agency responsible for funding the insta the illuminated infrastructure determines that there is a com by any other method ;
• with respect to roadway lighting on state highways , when i transportation determines that use of a fully shielded lumin utilizing the highway , increase the cost of the lighting plan violate any provision of federal law ; or
• the luminaire shall be used to illuminate designated public the United States of America and the state of New Hampsh
The bill also restricts public utility companies from installing or rep of roadway lighting if the cost is covered by municipal funds , unles
• III . ( a ) the luminaire is a fully shielded luminaire when the 1,800 lumens ;
• III . ( b ) the maximum illuminance at the designated surface recommended for that purpose by the Illuminating Enginee Highway Administration ; or
• III . ( c ) the governing body of a municipality may waive th after written notice from the public utility company 30 day luminaire , the governing body determines that a waiver is n
The bill furthermore enacts state policy to encourage local municipa conserve energy , minimize light trespass and glare , and to maintain character . Also detailed in the bill is the establishment of a part-nigh roadway / area lighting to boost energy conservation and savings .
Additionally , the bill requires a report from the state Department of
• review and update its criteria for roadway lighting to ensur conform to commonly accept best practices ;
Appendix A : White Paper – Communities Addressing Light Pollution that Affect Nighttime Military Training