Level AAA cannot be treated as a site-wide requirement for every content type

What it is

A newsroom shipping forty videos a day is told to be “AAA across the site”: sign language and extended audio description on every clip, 7:1 contrast on photo features, legal columns forced down to lower-secondary reading level. Several of those asks are not laziness — they are this content type and that criterion refusing each other. Level AAA can be chased for a page or a single criterion. It cannot be a site-wide policy that holds for every content type. WCAG itself says AAA should not be required as a general policy for entire sites, because some content cannot satisfy all AAA success criteria.

“Not achievable” is not “do no AAA.” It is “do not hang one site-wide badge that promises every AAA item at once.”

Why it happens

AAA mixes conditions that collide with what the content is. Live and high-volume audiovisual work: sign interpretation and extended description need production capacity that a live or daily pipeline does not have in time. Visual work: 7:1 will clip the gamut of photography and data colour until the information itself is gone. Specialised text: driving a contract, a drug label, or API docs down to a low reading grade either voids legal force or becomes a second, plain summary — the summary can be offered; the source text remains. These are not one kind of gap that more budget erases.

The second layer is universal quantification. One criterion can be achievable for one type (a pre-recorded interview with sign). All criteria cannot be achievable for all pages. A policy that reads “this site is AAA” binds the achievable patches and the impossible patches to one sentence. Failure then stops being “this video has no sign” and becomes “the claim is false.”

Studying it

Build a content-type × AAA-criterion matrix for the target site: rows for pre-recorded video, live, photography, charts, legal text, interactive controls; columns for sign, extended description, 7:1 contrast, reading grade, no timing. Fill each cell with “could this type ever meet this,” not “do we want to.”

Independent variables: content type, AAA criterion under review. Dependent variables: whether the cell is structurally doable, capacity-hard, or in conflict with the nature of the content.

This is a feasibility classification, not a conformance claim. Scope of a claim (one page versus a whole site, retesting after dynamic updates) is a different question. Here the only answer is whether the top level can be a site-wide target.

Where it stops holding

A small, controlled site — few pages, no live, no photography, already colloquial text — may hold every AAA item over a long cycle; that does not generalise to media or tool products. A single AAA item on one content type (sign on pre-recorded lessons) can be a product promise, so long as it is not written as a site-wide level. Research or art projects that deliberately break contrast and reading grade are choosing unreadability; they still owe an equivalent channel, and “AAA was never achievable” is not a shield. AA as a legal baseline can still be mandated. What cannot be mandated as a universal is the top level’s “for all content.”

Applying it

• Write site-wide policy up to the middle level; name AAA by content type (“all pre-recorded courses have sign”), never “this product is AAA.”
• For photography, live work, and mandated source text, mark in advance which AAA criteria collide, and route to an equivalent channel (nearby prose, a separate summary) instead of grading colour until the information dies.
• How to check: overlay the content-type × AAA table on the public claim. If the claim is site-wide top level and the table already holds conflict cells, change the sentence — do not add another test round to “grind it through.”

Related

• Same group: J1.02.1 Conformance levels measure how far criteria are met, not which barriers matter more · J1.02.2 Level AA is the baseline most accessibility laws actually adopt
• Nearby: J1.10 Scope of conformance claims · J4.04 Sign language and video alternatives · J4.06 Reading difficulty
• Search terms: Level AAA · conformance policy · content type