guide · running it safely

What Clearcast and the CAA actually check

The clearance body is not judging your creative. It is asking for your evidence.

UK broadcast and cinema advertising must be approved before it runs, by separate bodies applying separate rules, and the approval is required rather than advisory. Three provisions account for most rejections. Objective and superlative claims — best, number one, market-leading — need documentary substantiation held by the advertiser. Medicines, medical devices and health claims require evidence and unsubstantiated efficacy claims are routinely refused. And cinema copy containing strong language attracts an age rating that restricts which films it can be shown beside, which is a media constraint as much as a creative one. None of these is a judgement about quality; all of them are requests for evidence or consequences of category.
Broadcast code
BCAP
Non-broadcast code
CAP
Cinema lead time
~18 days incl. clearance
Length
4 min read
evidenceNo campaign outcomes
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On this page
if you read nothing else

What to remember

The whole guide is below. These are the parts that change a decision.

  1. 01

    Superlatives need documents, not confidence. 'The best' is a claim you must be able to evidence, and the clearance body will ask for the evidence rather than take the claim.

  2. 02

    Health and medicine claims are the category where a rewrite is almost always cheaper than an argument.

  3. 03

    Cinema has its own body and its own age rating. Strong language restricts your film pairing, which can invalidate the venue package the media plan was built on.

  4. 04

    Clearance is a lead time, not a fee, and it is usually the binding constraint on when a campaign can start.

01

Two bodies, two codes, two timelines

Broadcast advertising in the UK is pre-approved on behalf of the major broadcasters by Clearcast before it can air, against the broadcast advertising code. Cinema advertising is cleared separately, by the Cinema Advertising Association, which also issues an age rating determining which certificate films the advert may accompany.

They are not interchangeable and passing one does not imply the other. A film cleared for television may still attract a cinema rating that restricts its pairing, and a cinema advert is delivered as a different master entirely.

The practical consequence is planning. Two clearance processes on two timelines, both of which sit in front of the flight date, is the reason a campaign that has to be live in ten days usually cannot include either channel.

02

Superlatives: the most common flag

Objective and superlative claims need documentary substantiation. This covers the obvious ones — best, number one, leading — and also comparative claims about competitors and specific quantified assertions about performance.

The substantiation has to exist and has to be produceable. A belief that the claim is true, however well founded, is not evidence, and the clearance body will ask for the document rather than assess the plausibility.

The efficient way to handle this is to check at the scripting stage. A flagged claim in a script costs an edit; the same claim in a finished film costs a reshoot. AdBuyMCP's pre-check finds superlative claims and names the rule beside each one before anything is commissioned — and states explicitly that it cannot read a substantiation document and does not assess evidence quality. Where you declare that you hold evidence, both the claim and the declaration stay on the record for the body that actually decides.

03

Health, medicines and the categories that stop

Medicines, medical devices, treatments and health claims are governed by their own provisions and are the most restrictive category in the codes. Evidence requirements are high and unsubstantiated efficacy claims are routinely refused outright rather than negotiated.

Adjacent categories carry their own constraints: alcohol, gambling and financial products all have rules governing both what may be said and where it may be placed, which means a clearance issue in these categories can become a media issue.

For anything in these categories the sensible sequence is to establish what can be said before writing anything, rather than writing what you want to say and discovering the constraint at clearance.

04

The cinema age rating, which is a media decision in disguise

Cinema copy containing strong language attracts a rating that restricts it to 15 and 18 certificate films. That sounds like a creative constraint and is actually a media one: it changes which films you can sit beside, which changes the audience you reach, which can invalidate the venue and film package the plan was built on.

The order of operations matters. If the media plan assumed a family-film package and the copy attracts a 15 rating, the plan has to be rebuilt rather than the copy adjusted at the margin.

This is the strongest argument for running the clearance pre-check at the scripting stage rather than at delivery. The information is cheap to act on early and expensive to act on late.

If the version of this that matters is the one about your own budget, that is a working session rather than a page.

Talk it through
what this guide does not claim

The limits, in the same size type as the rest

This guide explains what the clearance bodies check and in what order to deal with it. It cannot tell you whether your specific claim will clear — that is a judgement the bodies make on evidence you hold. AdBuyMCP's pre-check predicts flags deterministically against the codes and names the rule for each finding; it explicitly cannot read a substantiation document and does not assess evidence quality, and nothing here should be read as a guarantee of clearance.

If one of those limits is disqualifying, it is better established now than in week three, and a call establishes it in forty-five minutes.

Talk it through
where this came from

Every figure above, and the file it was read from

Named rather than linked. A URL nobody opened on the day it was attached is a citation in appearance only, so this names the code, the data module or the dated research report instead, and you can go and check.

  • 01The rules named and their code references are read from the creative pre-check module in the product repository, which cites CAP 3.7 and BCAP 3.9 for substantiation, BCAP 11 for medicines and health, and the cinema age-rating policy.
  • 02Cinema delivery specification and routing from the same source.

893words, counted from this page rather than claimed. Where the platform’s README and its code disagree, the code wins.

// bring a brief

Everything above, run against your own audience.

Forty-five minutes. One sentence compiles into seven channel plans in front of you, with the fidelity score, the lawful-basis manifest and the measurement eligibility on screen rather than described.

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45 minutes. Bring a real brief and we compile it live. · Design-partner phase · the sandbox needs no card and no credentials

Questions this guide gets asked

Answered in full here, and indexed alongside every other question this site answers at /faq.

How long does clearance take?

Long enough to be the binding constraint rather than the media availability. For cinema, budget around eighteen days from brief to on-screen once clearance is in the path. Broadcast varies with the complexity of the claims: straightforward copy moves quickly, and anything requiring substantiation review takes as long as the review does. Neither is a process to start after the flight has been booked.