The current standard is developed for the purpose of implementation of Environmental Protection Law of the People’s Republic of China, Regulations of the People’s Republic of China on Disclosure of Government Information and Measures on Disclosure of Environmental Information (Trial); standardizing the construction and routine operation of website of competent environmental protection department at all levels and ensuring and facilitating disclosure of environmental information. The current standard specifies technical requirements for the construction and routine operation and maintenance of website of competent environmental protection department at all levels in terms of contents, design, performance and security. The current standard is released for the first time.