OBS_VALUE: The system of national and local standard and technical regulations must ensure consistency with international standards in accordance with international treaties that Vietnam is a signatory and participant. Vietnam National and local standard are created based on the international standard (ISO system)The latest updated list of National Technical Regulations promulgated by the Ministry of Construction: https://moc.gov.vn/vn/tin-tuc/1304/63593/danh-muc-quy-chuan-ky-thuat-quoc-gia-do-bo-xay-dung-ban-hanh.aspx