Official Record Series (ORS) 4 - Miscellaneous
ORS4 No.
Description / Link
Issued
Valid To
1639
Issue of class ratings for the National Private Pilots Licence (Aeroplanes)
NOTE: If you hold a LAPL(A) it must be converted to an NPPL before using this exemption
14 Nov 2025
30 Nov 2026
1633
Revalidation of Microlight and SLMG Class Ratings issued prior to 1 February 2008
30 Sep 2025
31 Oct 2026
1632
The Use of Non-Part 21 Aircraft Operating on a Permit to Fly for Certain Operations
30 Sep 2025
30 Sep 2027
1629
Alternative medical criteria when making a Pilot Medical Declaration
19 Sep 2025
30 Sep 2027
1613
Glider Towing with UK National Permit to Fly Aircraft
31 Oct 2024
Until Revoked
1578
Standardised European Rules of the Air − Compliance with Cruising Level Requirements
05 May 2023
Until Revoked
1553
Overflight of Congested Area Conditions on UK National Permits to Fly
21 Jul 2022
Until Revoked
1525
Exemption to allow Certain Aircraft to use Unleaded Avgas UL 91
11 Feb 2022
Until Revoked
1496
(UK) Standardised European Rules of the Air − Exceptions to the Minimum Height Requirements
28 Jun 2021
Until Revoked
1492
Landing and Taking Off Near Open-Air Assemblies
27 May 2021
Until Revoked
1477
(UK) Standardised European Rules of the Air - Visual Flight Rules (VFR) and Special VFR Flight at Night
31 Mar 2021
Until Revoked