TY JOUR TI ANALYSIS OF REGULATORY LEGAL ACTS IN THE FIELD OF FIRE SAFETY AT TRADE FACILITIES KW hierarchy KW regulatory legal documents KW fire safety KW international agreements KW national legislation KW regional and local regulations KW codes KW standards KW instructions KW regulatory documents KW local orders KW directives JO MONITORING AND EXPERTISE IN SAFETY SYSTEM AU Maer, O.M. AU Arhipov, A.I. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia