This standard specifies the installation scope, general provisions, types and installation requirements, design, construction and acceptance, maintenance and safety testing requirements of outdoor signboards. This standard applies to the setting, design, construction, acceptance, maintenance and testing of outdoor signboards in this city.
DB31/T 977-2016 history
2023DB31/T 977-2023 Technical specifications for setting up outdoor signboards
2016DB31/T 977-2016 Technical specifications for setting up outdoor signboards