Folgende Verordnungen gelten für die NOTOS 2021 (jeder Wortlaut ist in Englisch abgefasst):
- FIP SREV and Guidelines for Traditional Philately
- FIP SREV and Guidelines for Postal History
- FIP SREV and Guidelines for Postal Stationery
- FIP SREV and Guidelines for Aerophilately
- FIP SREV and Guidelines for Astrophilately
- FIP SREV and Guidelines for Revenues
- FIP SREV and Guidelines for Thematic Philately
- FIP SREV and Guidelines for Maximaphily
- FIP SREV for Youth Philately
- FEPA Special Regulations for Philatelic Literature