TheTesting testing of PRVspressure relief valves (PRVs) fitted to LPG road tankers: authorisation 948tankers
Authorisation 948 regarding testing requirements for pressure relief valves fitted to LPGliquefied petroleum gas (LPG) road tankers.
Documents
Details
This authorisation (948) disapplies the testing requirement in 6.8.2.4.3 for pressure relief valves (PRVs) fitted to the tanks of tank-vehicles set out in the schedules to this authorisation.
This notice was revised January 2025 to extend the expiry date to 31 March 2026.
This revision also removes Schedule No.1 Rev.6 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.5 Trailers (Tranche 1).
It also removes PRVs in:
- Schedule No.1 Rev.3 Motor Vehicles (Tranche 2)
- Schedule No.2 Rev.2 Trailers (Tranche 2)
- Schedule No 1 Rev.3 Motor Vehicles (Tranche 3)
- Schedule No 2 Rev.2 Trailers (Tranche 3)
This authorisation has immediate effect and will remain in force until 3031 AprilMarch 20252026 unless withdrawn or otherwise revoked.
Updates to this page
Published 16 April 2020
Last updated 2123 JuneJanuary 2023
2025
+ show all updates
-
Notice expiry date extended until March 2026 and schedules amended.
-
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
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This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).
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-
This revision corrects the pressure relief valve serial numbers for Schedule No.1 Rev.1 (Motor Vehicles) Trance 2 entry numbers 67, 72 and 74.
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-
This revision extends the time limit of the authorisation and also includes additional PRVs in Schedule No.1 (Motor Vehicles) Tranche 2 and Schedule No.2 (Trailers) Tranche 2.
-
-
This revision corrects the PRV serial numbers for motor vehicle entry numbers 14, 18 and 40 in Schedule No. 1.
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This revision corrects the registration number of motor vehicle entry number 25 and the PRV serial number of motor vehicle entry number 30 in Schedule No. 1; adds three new motor vehicle entries (68, 69 and 70) to Schedule No. 1; corrects the identification number of trailer entry number 13 and the PRV serial number of trailer entry number 16 in Schedule No. 2; and removes trailer entry number 15 from Schedule No. 2.
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Authorisation 948 revision 1 corrects 2 entries in the schedules and includes a new provision to cover occasions when the scheduled intermediate inspection has been missed. The revision also allows for an inspection body to check the pressure relief valves for satisfactory operation if considered necessary.
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Update history
2025-12-02 12:06
Notice revised to remove pressure relief valves from Schedule No 1 Rev.5 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.3 Trailers (Tranche 3).
2025-11-04 13:42
Notice revised to remove Schedule No 1. Rev.3 Motor Vehicles (Tranche 2) and pressure relief valves from Schedule No 1 Rev.1 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.2 Trailers (Tranche 3).
2025-01-23 12:12
Notice expiry date extended until March 2026 and schedules amended.
2023-06-21 10:59
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
2022-03-25 17:15
This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).
Details
This authorisation (948) disapplies the testing requirement in 6.8.2.4.3 for pressure relief valves (PRVs) fitted to the tanks of tank-vehicles set out in the schedules to this authorisation.
This notice was revised January 2025 to extend the expiry date to 31 March 2026.
This revision also removes Schedule No.1 Rev.6 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.5 Trailers (Tranche 1).
It also removes PRVs in:
- Schedule No.1 Rev.3 Motor Vehicles (Tranche 2)
- Schedule No.2 Rev.2 Trailers (Tranche 2)
- Schedule No 1 Rev.3 Motor Vehicles (Tranche 3)
- Schedule No 2 Rev.2 Trailers (Tranche 3)
This authorisation has immediate effect and will remain in force until 3031 AprilMarch 20252026 unless withdrawn or otherwise revoked.
Updates to this page
Published 16 April 2020
Last updated 2123 JuneJanuary 2023
2025
+ show all updates
-
Notice expiry date extended until March 2026 and schedules amended.
-
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
-
-
This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).
-
-
This revision corrects the pressure relief valve serial numbers for Schedule No.1 Rev.1 (Motor Vehicles) Trance 2 entry numbers 67, 72 and 74.
-
-
This revision extends the time limit of the authorisation and also includes additional PRVs in Schedule No.1 (Motor Vehicles) Tranche 2 and Schedule No.2 (Trailers) Tranche 2.
-
-
This revision corrects the PRV serial numbers for motor vehicle entry numbers 14, 18 and 40 in Schedule No. 1.
-
-
This revision corrects the registration number of motor vehicle entry number 25 and the PRV serial number of motor vehicle entry number 30 in Schedule No. 1; adds three new motor vehicle entries (68, 69 and 70) to Schedule No. 1; corrects the identification number of trailer entry number 13 and the PRV serial number of trailer entry number 16 in Schedule No. 2; and removes trailer entry number 15 from Schedule No. 2.
-
-
Authorisation 948 revision 1 corrects 2 entries in the schedules and includes a new provision to cover occasions when the scheduled intermediate inspection has been missed. The revision also allows for an inspection body to check the pressure relief valves for satisfactory operation if considered necessary.
-
Update history
2025-12-02 12:06
Notice revised to remove pressure relief valves from Schedule No 1 Rev.5 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.3 Trailers (Tranche 3).
2025-11-04 13:42
Notice revised to remove Schedule No 1. Rev.3 Motor Vehicles (Tranche 2) and pressure relief valves from Schedule No 1 Rev.1 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.2 Trailers (Tranche 3).
2025-01-23 12:12
Notice expiry date extended until March 2026 and schedules amended.
2023-06-21 10:59
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
2022-03-25 17:15
This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).
Details
This authorisation (948) disapplies the testing requirement in 6.8.2.4.3 for pressure relief valves (PRVs) fitted to the tanks of tank-vehicles set out in the schedules to this authorisation.
This notice was revised January 2025 to extend the expiry date to 31 March 2026.
This revision also removes Schedule No.1 Rev.6 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.5 Trailers (Tranche 1).
It also removes PRVs in:
- Schedule No.1 Rev.3 Motor Vehicles (Tranche 2)
- Schedule No.2 Rev.2 Trailers (Tranche 2)
- Schedule No 1 Rev.3 Motor Vehicles (Tranche 3)
- Schedule No 2 Rev.2 Trailers (Tranche 3)
This authorisation has immediate effect and will remain in force until 3031 AprilMarch 20252026 unless withdrawn or otherwise revoked.
Updates to this page
Published 16 April 2020Last updated
-
Notice expiry date extended until March 2026 and schedules amended.
-
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
-
This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).
-
This revision corrects the pressure relief valve serial numbers for Schedule No.1 Rev.1 (Motor Vehicles) Trance 2 entry numbers 67, 72 and 74.
-
This revision extends the time limit of the authorisation and also includes additional PRVs in Schedule No.1 (Motor Vehicles) Tranche 2 and Schedule No.2 (Trailers) Tranche 2.
-
This revision corrects the PRV serial numbers for motor vehicle entry numbers 14, 18 and 40 in Schedule No. 1.
-
This revision corrects the registration number of motor vehicle entry number 25 and the PRV serial number of motor vehicle entry number 30 in Schedule No. 1; adds three new motor vehicle entries (68, 69 and 70) to Schedule No. 1; corrects the identification number of trailer entry number 13 and the PRV serial number of trailer entry number 16 in Schedule No. 2; and removes trailer entry number 15 from Schedule No. 2.
-
Authorisation 948 revision 1 corrects 2 entries in the schedules and includes a new provision to cover occasions when the scheduled intermediate inspection has been missed. The revision also allows for an inspection body to check the pressure relief valves for satisfactory operation if considered necessary.
Update history
2025-12-02 12:06
Notice revised to remove pressure relief valves from Schedule No 1 Rev.5 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.3 Trailers (Tranche 3).
2025-11-04 13:42
Notice revised to remove Schedule No 1. Rev.3 Motor Vehicles (Tranche 2) and pressure relief valves from Schedule No 1 Rev.1 Motor Vehicles (Tranche 3) and Schedule No 2 Rev.2 Trailers (Tranche 3).
2025-01-23 12:12
Notice expiry date extended until March 2026 and schedules amended.
2023-06-21 10:59
This revision removes PRVs in Schedule No.1 Rev.6 Motor Vehicles (Tranche 1), Schedule No.1 Rev.2 Motor Vehicles (Tranche 2), Schedule No.2 Rev.5 Trailers (Tranche 1) and Schedule No.2 Rev.1 Trailers (Tranche 2) and corrects the pressure relief valve serial numbers for line 34 of Schedule No 1 Rev.2 Motor Vehicles (Tranche 3) and line 4 of Schedule No 2 Trailers (Tranche 3).
2022-03-25 17:15
This revision removes PRVs in Schedule No.1 Rev.5 Motor Vehicles (Tranche 1) and Schedule No.2 Rev.4 Trailers (Tranche 1). It also includes additional PRVs in Schedule No.1 Motor Vehicles (Tranche 3) and Schedule No. 2 Trailers (Tranche 3).