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  1. This website highlights the importance of planning against noise problems. It gives a brief description of potential noise problems associated with electrical & mechanical systems and provides guidelines on practical noise control measures that are applicable for new designs and for retrofitting existing designs.

    • Noise Criteria

      The noise under investigation is measured and corrected ...

    • Noise

      The Noise Control Ordinance came into effect in 1989 ...

  2. The purpose of the Noise Control Ordinance Cap.400 (NCO) is to provide statutory controls to restrict and reduce the nuisance caused by environmental noise. Details of the ordinance and related regulations can be found in the "Bilingual Laws Information System" website of the Department of Justice at

    • noise control measure1
    • noise control measure2
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    • noise control measure5
  3. The noise under investigation is measured and corrected for any special intrusive characteristics such as tonality, impulsiveness and intermittency in accordance with the Technical Memorandum for the Assessment of Noise from Places other than Domestic

  4. The Noise Control Ordinance came into effect in 1989 and included controls on construction noise that have been progressively tightened. Piling is limited to three or five hours a day in built-up areas, quieter piling equipment must be used, and other forms of noisy activities are controlled.

  5. On this page you can learn about how the Environmental Protection Department is managing construction noise, the roles of construction noise permits and noise emission labels, a code of good practice to which the Department is encouraging adherence, and a pilot scheme on quiet renovation.

  6. 噪音管制條例》 E-1. 第400 章. 制定史. 本為1988 年第75號 —— 1988 年編正版,1989 年第244號法律公告,1992 年第6 號,1993 89 號,第2 號,1995 年第年第1994 年第57 號法律公告, (C)16 號法律公告( 中文真確本),1996 年第1994年. 12號,1996 年第61 號,1997 年第37 號,1997 年第362 號法律公告, 25 號,1998 年第1999 1997年第631 號法律公告,1998 年第29 號,年第. 78 號,2000 年第13 號,2002 年第2002 年第19 號,2007 年第年第2 號編輯修訂紀錄,2021 年第號法律公告,2024 年第21號. 11 號,

  7. The applicant is advised to read the Noise Control Ordinance, the Noise Control (General) Regulations and the Technical Memorandum on Noise from Percussive Piling before submitting this application. The Authority shall be guided by the Technical Memorandum in considering an application.