Should have said 'could' be.
But not in this case according to the NOTAM wording of PL:
Originally Posted by C0623/22 EPWW
Period: 2022-05-27T11:57:00.000Z - 2022-08-27T23:59:00.000Z
ALL AIRCRAFT OWNED, CHARTERED OR OPERATED BY CITIZENS OF THE RUSSIAN FEDERATION, OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY AIRSPACE OF POLAND EXCEPT HUMANITARIAN, SAR AND LEASED AIRCRAFT ONE-WAY RETURN FLIGHTS WITH THE PERMISSION OF THE APPROPRIATE POLISH AUTHORITIES AND IN CASE OF EMERGENCY LANDING OR EMERGENCY OVERFLIGHT. THE PERMISSION IS AVAILABLE FROM CIVIL AVIATION AUTHORITIES OF POLAND IN WRITING VIA EMAIL TO: CAAPL(AT)ULC.GOV.PL. CREATED: 27 May 2022 11:58:00 SOURCE: EUECYIYN
Czechia not really there either (spot the difference)
Originally Posted by A0303/22 LKAA
Period: 2022-04-08T12:26:00.000Z - 2022-07-07T23:00:00.000Z
RUSSIAN INVASION OF UKRAINE ALL AIRCRAFT OWNED, CHARTERED, OPERATED OR OTHERWISE CONTROLLED BY CITIZENS OF THE RUSSIAN FEDERATION AND OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY AIRSPACE OF THE CZECH REPUBLIC EXCEPT AIRCRAFT IN EMERGENCY OR EXCEPT FLIGHTS WITH SPECIAL PERMISSION OF THE MINISTRY OF TRANSPORT OF THE CZECH REPUBLIC. CREATED: 08 Apr 2022 12:28:00 SOURCE: LKPRYNYX
Slovakia quite the same
Originally Posted by A0875/22 LZBB
Period: 2022-05-25T11:05:00.000Z - 2022-08-25T23:59:00.000Z
ALL AIRCRAFT OWNED, CHARTERED OR OPERATED OR OTHERWISE CONTROLLED BY CITIZENS OF THE RUSSIAN FEDERATION AND ALL OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY AIRSPACE OF THE SLOVAK REPUBLIC EXCEPT HUMANITARIAN, SAR AND LEASED AIRCRAFT ONE-WAY RETURN FLIGHTS WITH THE PERMISSION OF THE APPROPRIATE SLOVAK AUTHORITIES AND IN CASE OF EMERGENCY LANDING OR EMERGENCY OVERFLIGHT. CREATED: 25 May 2022 11:05:00 SOURCE: EUECYIYN
Bulgaria
Originally Posted by A0529/22 LBSR
Period: 2022-05-25T15:44:00.000Z - 2022-08-25T20:59:00.000Z
UKRAINIAN CRISIS: ALL AIRCRAFT OWNED, CHARTERED OR OPERATED OR OTHERWISE CONTROLLED BY CITIZENS OF THE RUSSIAN FEDERATION AND ALL OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY BULGARIAN AIRSPACE EXCEPT HUMANITARIAN, SAR AND LEASED AIRCRAFT ONE-WAY RETURN FLIGHTS WITH THE PERMISSION OF THE APPROPRIATE BULGARIAN AUTHORITIES AND IN CASE OF EMERGENCY LANDING OR EMERGENCY OVERFLIGHT. CREATED: 25 May 2022 15:44:00 SOURCE: LBSFYNYX
Romania
Originally Posted by A1431/22 LRBB
Period: 2022-04-28T11:16:00.000Z - 2022-08-03T20:59:00.000Z
FLIGHT RESTRICTIONS. UKRAINIAN CRISIS - ALL RUSSIAN REGISTERED AIRCRAFT AND AIRCRAFT OWNED, CHARTERED OR OPERATED BY NATURAL OR LEGAL PERSONS FROM THE RUSSIAN FEDERATION OR BY OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY ROMANIAN AIRSPACE EXCEPT HUMANITARIAN, SAR AND LEASED AIRCRAFT ONE-WAY RETURN FLIGHTS WITH THE PERMISSION OF THE APPROPRIATE ROMANIAN AUTHORITIES AND IN CASE OF EMERGENCY LANDING OR EMERGENCY OVERFLIGHT. CREATED: 28 Apr 2022 11:17:00 SOURCE: EUECYIYN
Lithuania
Originally Posted by A1898/22 EYVL
Period: 2022-05-27T08:00:00.000Z - 2022-09-30T13:00:00.000Z
UKRAINIAN CRISIS - ALL RUSSIAN REGISTERED AIRCRAFT AND AIRCRAFT OWNED, CHARTERED OR OPERATED BY NATURAL OR LEGAL PERSONS FROM THE RUSSIAN FEDERATION OR BY OPERATORS HOLDING AIR OPERATOR CERTIFICATE (AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE PROHIBITED TO ENTER, EXIT OR OVERFLY LITHUANIAN AIRSPACE EXCEPT HUMANITARIAN, SAR AND LEASED AIRCRAFT ONE-WAY RETURN- FLIGHTS WITH THE PERMISSION OF THE APPROPRIATE LITHUANIAN AUTHORITIES AND IN CASE OF EMERGENCY LANDING OR EMERGENCY OVER- FLIGHT CREATED: 27 May 2022 08:07:00 SOURCE: EUECYIYN
Nope, not there. I recalled the original wording said 'Chartered for or with a business relation to Russian Natural or Legal Person'.
Sure now it does not.