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Question follow-through · 121828

Aviation: Colour Vision Deficiency

To ask the Secretary of State for Transport, pursuant to the Answer of 9 March 2026 to Question 116584 on Aviation: Colour Vision Deficiency, what independent analysis reported that only the CAD test and anomaloscopes when used correctly have 100% sensiti

answeredDepartment for Transport

About this written question

A written question asks a government minister for information in writing. Parliament publishes the question and any answer.

Answering body
Department for Transport
Tabled
18 Mar 2026
Target answer date
23 Mar 2026
Answer
30 Mar 2026 · 12 calendar days after tabling

Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.

More questions by this MP on Transport

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Recorded timeline

  1. 18 Mar 2026

    Question tabled

    To ask the Secretary of State for Transport, pursuant to the Answer of 9 March 2026 to Question 116584 on Aviation: Colour Vision Deficiency, what independent analysis reported that only the CAD test and anomaloscopes when used correctly have 100% sensiti

  2. 23 Mar 2026

    Target answer date

    Date supplied by the official written-questions record.

  3. 30 Mar 2026

    Answer published

    The analysis in question is a paper from a French research group that was published in a peer reviewed journal in 2018. The reference is: Marechal M, Delbarre M, Tesson J et al. Color vision tests in pilots’ medical assessments. Aerosp Med Hum Perform Aug...

Open official record

Official data retrieved 28 Sept 2026.

Later records

Possible follow-up questions

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DfT Operator

19 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 18 March 2026 to Question 119493, what roles and functions the 210 staff transferring to DfT Operator Ltd on 1 April 2026 will undertake; from which directorates and business units wit

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Railways: Concessions

19 Mar 2026 · To ask the Secretary of State for Transport, what the cost was of the 1.) Network Railcard, 2.) 16-17 Saver, 3.) 16-25 Railcard, 4.) 26-30 Railcard, 5.) Family & Friends Railcard, 6.) Two Together Railcard, 7.) Senior Railcard, 8.) Disabled Persons Railca

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Air Routes: Cornwall

19 Mar 2026 · To ask the Secretary of State for Transport, what assessment she has made of the potential impact of the decision to end the PSO route to Cornwall on the economy.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

High Speed 2 Line: Finance

19 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the answer of 18 March 2026 to Question 120007, whether any elements of the HS2 programme’s scope, specification or associated works are expected to change in order to align the programme with the S

Unreviewed candidateSame MP and department; topic relationship is unreviewed

High Speed 2 Line

19 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 16 March 2026 to Question 119492, if she will publish details of the (a) month and (b) year she expects the reset of the High Speed Two programme to be completed.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Electric Vehicles: Hire Services

19 Mar 2026 · To ask the Secretary of State for Transport, what assessment she has made of the potential impact of the six-day minimum hire threshold on the proportion of zero emission vehicles counted towards the Government Fleet Commitment.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

HGV Parking and Driver Welfare Grant Scheme

19 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 13 February 2026 to Question 110890, what assessment her Department has made of the effectiveness of the HGV Parking and Driver Welfare Matched Funding Scheme.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Hybrid Vehicles: Fires

19 Mar 2026 · To ask the Secretary of State for Transport, whether her Department has assessed the implications for its policies of findings from the Swedish Civil Contingencies Agency indicating that hybrid vehicles experience approximately 3,475 fires per 100,000 veh

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Driving Tests: Recruitment

20 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 10 March 2026 to Question 118043, how many driving test centres display recruitment posters for driving examiner roles.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Driving Tests: Recruitment

20 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 10 March 2026 to Question 118043, what the average click-through rate was for driving examiner recruitment campaigns in the last 12 months; and what proportion of those click-throughs

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Driving Tests: Recruitment

20 Mar 2026 · To ask the Secretary of State for Transport, pursuant to the Answer of 10 March 2026 to Question 118043, what systems the Driver and Vehicle Standards Agency uses to track the source of applications for driving examiner roles.