
Chadchart Moves to Regulate LED Sign Light Pollution
The draft Bangkok Act, tabled during the third ordinary session (first meeting) of the Bangkok Metropolitan Council (BMC) for 2025, aligns with Section 17 of the Ministerial Regulation on the control of signs and structures, under the Building Control Act B.E. 2558 (2015), and the Bangkok Metropolitan Administration Act B.E. 2528 (1985) and its amendments.
Chadchart highlighted that LED advertising signs, particularly those located near expressways, often emit excessive light that disturbs nearby residents. However, current laws do not clearly define what constitutes a disruptive level of brightness.
'This draft act is not only to prevent nuisance but to provide measurable guidelines for acceptable light intensity,' said Chadchart. 'At present, there is no scientific standard to determine when lighting becomes disruptive.'
He added, 'We want to set clear criteria to ensure that private sector investment in signage stays within reasonable limits, while safeguarding citizens' wellbeing and road safety.'
The proposed regulation sets maximum light intensity limits for electric signs as follows:
Any sign exceeding these levels would be deemed a nuisance or a hazard to visibility and traffic safety. The Governor of Bangkok would be authorised to take action under this regulation.
The BMC approved the draft and formed a special committee to suggest amendments within five days and complete a review within 60 days.
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Bangkok Post
29-07-2025
- Bangkok Post
Chadchart Moves to Regulate LED Sign Light Pollution
Bangkok, July 29, 2025 – Bangkok Governor Chadchart Sittipunt has proposed a draft regulation to control lighting from electric signs with integrated LED systems, aiming to improve residents' quality of life and address increasing complaints over excessive light emissions in the city. The draft Bangkok Act, tabled during the third ordinary session (first meeting) of the Bangkok Metropolitan Council (BMC) for 2025, aligns with Section 17 of the Ministerial Regulation on the control of signs and structures, under the Building Control Act B.E. 2558 (2015), and the Bangkok Metropolitan Administration Act B.E. 2528 (1985) and its amendments. Chadchart highlighted that LED advertising signs, particularly those located near expressways, often emit excessive light that disturbs nearby residents. However, current laws do not clearly define what constitutes a disruptive level of brightness. 'This draft act is not only to prevent nuisance but to provide measurable guidelines for acceptable light intensity,' said Chadchart. 'At present, there is no scientific standard to determine when lighting becomes disruptive.' He added, 'We want to set clear criteria to ensure that private sector investment in signage stays within reasonable limits, while safeguarding citizens' wellbeing and road safety.' The proposed regulation sets maximum light intensity limits for electric signs as follows: Any sign exceeding these levels would be deemed a nuisance or a hazard to visibility and traffic safety. The Governor of Bangkok would be authorised to take action under this regulation. The BMC approved the draft and formed a special committee to suggest amendments within five days and complete a review within 60 days.

Bangkok Post
17-07-2025
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BMA chief voices train fare compensation concerns
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Bangkok Post
15-07-2025
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Waste sorting a money saver
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