Nineteenth encourage the use of new technologies, new materials, new processes and new equipment with low noise. It is forbidden to produce, sell, import or use equipment and products listed in the national list of equipment with serious environmental noise pollution. Twentieth in the production, construction, management and other activities that may produce environmental noise, measures should be taken to adjust the operation time, reasonably arrange the location of noise pollution sources, improve the process and so on to prevent noise from disturbing the people. Article 21 Where construction is carried out in an area where noise-sensitive buildings are concentrated, the construction unit shall publicize the project name, project construction content and time, contact information of the construction unit, name of the construction unit, on-site person in charge and contact information, possible noise pollution and prevention measures at the construction site during the construction period. Twenty-second it is forbidden to carry out night construction operations that produce environmental noise pollution in areas where noise-sensitive buildings are concentrated, except for emergency repair, emergency rescue operations and continuous operations due to production process requirements or special needs. Where emergency repair and rescue operations are carried out in areas where noise-sensitive buildings are concentrated at night, the construction unit shall take measures to prevent and control noise pollution, and at the same time, report the night operation project and the estimated construction time to the competent environmental protection department of the district/county (autonomous county) where it is located. The competent department of environmental protection shall immediately conduct on-site verification; If no danger is found after verification, it cannot be identified as emergency repair or rescue operation. If construction must be carried out at night due to production process requirements or special needs, the construction unit shall submit for approval in accordance with the provisions of relevant laws and regulations 4 days before construction at night. Municipal facilities construction and maintenance projects and key urban infrastructure projects determined by the Municipal People's Government must be constructed at night, and the municipal and municipal urban and rural construction departments shall issue certificates respectively. The construction unit shall announce the residents nearby at the construction site 1 day before the construction at night. The competent departments of environmental protection, municipal and urban and rural construction shall urge the project owners and construction units to implement noise pollution prevention and control measures, reduce night construction work and reduce environmental noise pollution. Twenty-third in addition to emergency rescue operations, before and during the college entrance examination 15 days, it is forbidden to carry out night construction operations that produce noise pollution in areas where noise-sensitive buildings are concentrated, and it is forbidden to carry out construction operations that produce environmental noise pollution in the surrounding areas of the examination room during the college entrance examination and the senior high school entrance examination. Twenty-fourth new construction, renovation and expansion of traffic trunk lines, should reasonably avoid noise-sensitive buildings concentrated areas. The construction unit shall, according to the conclusions of environmental impact assessment and examination and approval opinions, set up sound barriers or take other effective measures to control environmental noise pollution. The newly-built noise-sensitive structures on both sides of the traffic trunk line shall meet the requirements of noise protection. The construction unit shall, according to the conclusions of environmental impact assessment and examination and approval opinions, set up sound barriers, green belts or take other effective measures to control environmental noise pollution while building the main project. Twenty-fifth urban roads and pavements shall meet the requirements of the technical specifications for low-noise pavement maintenance in this Municipality. Road speed bumps should be optimized and constructed with low-noise materials. Article 26 It is forbidden to disassemble or illegally modify the muffler device of a motor vehicle in use. The quality and technical supervision and management department shall, jointly with the public security traffic management department, carry out fixed noise detection on motor vehicles in use in accordance with the provisions of the state and this Municipality. Without detection or detection does not meet the standards, the public security traffic management department shall not issue motor vehicle inspection marks. Twenty-seventh after repair, adjustment or use of control technology, still do not meet the national noise emission requirements of motor vehicles in use should be forced to scrap. Twenty-eighth motor vehicles are prohibited from honking their horns on roads and areas where honking is prohibited. The sections and areas where singing is prohibited in the main city shall be stipulated by the municipal public security organs, and other sections and areas where singing is prohibited shall be stipulated by the public security organs of the districts and counties (autonomous counties) where they are located. Railway locomotives shall whistle in accordance with the relevant provisions of the state. Twenty-ninth motor vehicle installation and use of anti-theft alarm, should comply with the relevant provisions of the state and the city. Special vehicles such as police cars, fire engines, ambulances and engineering rescue vehicles shall be equipped with horns and alarms with special performance, and shall comply with the provisions of public security organs, and shall not be used unless performing emergency tasks. Thirtieth ports, docks, stations, parking lots and garage should be rationally planned and located, and measures should be taken to prevent environmental noise pollution. Thirty-first ships sailing or operating in urban inland waterways shall use sound devices in accordance with the relevant provisions of the state and this Municipality to prevent environmental noise pollution. It is forbidden for ships to try to whistle in the main port area (above Guojiatuo in the Yangtze River to below Masangxi Bridge and below Gaojia Garden Bridge in Jialing River, the same below). When the line of sight is good and there is no other ship threatening the safety of the ship, habitual honking is not allowed. Sand mining vessels and transport vessels are prohibited from carrying out night mining and unloading operations in the port area of the main city. Article 32 Except for national aircrafts such as police, medical rescue and forest fire prevention, general aircrafts and equipment that produce environmental noise pollution are prohibited from conducting ultra-low altitude flight training or engaging in commercial activities in areas where noise-sensitive buildings are concentrated. Thirty-third engaged in production activities in cities and towns, it is really necessary to emit occasional strong noise, it should be submitted to the local public security organs in advance, after approval. The local public security organ shall make an announcement to the public. Activities such as assembly, gathering, entertainment, fitness, mourning and raising animals shall not be disturbed by noise. The use of non-motor vehicles, trolleys, pulleys and other equipment in areas where noise-sensitive buildings are concentrated shall not cause noise nuisance. From 12 to 14, and from 22: 00 to 8: 00 the next day, it is forbidden to carry out indoor decoration activities such as noise disturbing people in areas where noise-sensitive buildings are concentrated. At other times, effective measures should be taken to prevent or reduce noise disturbing people. Article 34 It is forbidden for any unit or individual to use tweeters or other tweeters to disturb the people in areas where noise-sensitive buildings are concentrated. Except for one of the following circumstances: (1) emergency situations such as emergency rescue, emergency repair and disaster relief; (2) Approved social activities such as culture, sports and celebrations; (three) all kinds of schools and kindergartens broadcast gymnastics, eye exercises and hold sports meetings and flag-raising ceremonies; (four) in the busy traffic hours, at stations, ports, docks, airports and major traffic intersections to carry out necessary diversion activities; (5) Other circumstances approved by the public security organ. Speakers or other high-pitched audio equipment used in the preceding paragraph shall be controlled at a reasonable volume in non-emergency situations to reduce noise pollution to the surrounding environment. It is forbidden to use loudspeakers or other high-pitched audio equipment to attract customers in commercial activities. Article 35 Facilities and equipment such as air conditioners, cooling towers, exhaust fans, generators, pumps, power distribution, water supply and drainage in residential areas should be set up, installed and used reasonably, and their noise emission should meet the prescribed emission standards.