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S T A T U T O R Y I N S T R U M E N T S
2025 No. 1246
CIVIL AVIATION
The Air Navigation (Restriction of Flying) (HM Dockyard,
Portsmouth) Regulations 2025
Made - - - - 20th November 2025
Coming into force - - 1st December 2025
The Secretary of State has decided that it is necessary in the public interest to restrict the flying of
unmanned aircraft in the area specified in regulation 3(1) by reason of security.
The Secretary of State makes the following Regulations in exercise of the powers conferred by
article 239 of the Air Navigation Order 2016(a).
Citation and commencement
1. These Regulations may be cited as the Air Navigation (Restriction of Flying) (HM Dockyard,
Portsmouth) Regulations 2025 and they come into force on 1st December 2025.
Interpretation
2. In regulation 3(1) the times referred to are Co-ordinated Universal Time(b).
Restricted airspace
3.—(1) Subject to paragraph (2), beginning with 0530 hours and ending with 1700 hours on 1st
December 2025 no unmanned aircraft is to fly below 500 feet above mean sea level within the
area bounded by straight lines joining successively the following points—
(a) 504755N 0010652W,
(b) 504827N 0010652W,
(c) 504836N 0010621W,
(d) 504832N 0010538W,
(e) 504819N 0010529W,
(f) 504802N 0010548W,
(g) 504800N 0010623W, and
(h) 504755N 0010652W.
(2) Paragraph (1) does not apply to any unmanned aircraft flying in accordance with a
permission issued by HM Dockyard, Portsmouth.
(a) S.I. 2016/765, amended by S.I. 2024/990; there are other amending instruments but none is relevant.
(b) Co-ordinated Universal Time (UTC) is the same as Greenwich Mean Time (GMT).Signed by authority of the Secretary of State for Transport
Karen L Michaels
Grade 7
20th November 2025 Department for Transport
EXPLANATORY NOTE
(This note is not part of the Regulations)
These Regulations impose restrictions on the flying of unmanned aircraft in the vicinity of
Portsmouth Dockyard on 1st December 2025. The Department for Transport and the Civil
Aviation Authority consider that the flying of unmanned aircraft should be restricted in the
vicinity of HM Dockyard, Portsmouth for reasons of security.
The times mentioned in regulation 3(1) are Co-ordinated Universal Time (UTC) which it is same
as Greenwich Mean Time (GMT).
In relation to the permission mentioned in regulation 3(2), HM Dockyard, Portsmouth may be
contacted as notified.
Full details of this statutory instrument will be promulgated by a Notice to Aviation (NOTAM).
The point of contact in the Civil Aviation Authority is Mr David Ridley, Airspace Regulator,
Safety and Airspace Regulation Group, on telephone number 03301 382471.
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