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Captioning gets planned for first. It is easier to budget, easier to demonstrate, and it is the accommodation most organisers already understand. Sign language interpretation gets treated as an add-on, requested if someone asks, sometimes not budgeted at all. That ordering assumes captioning is the broader, more complete solution and interpretation is the specialised extra. For a meaningful share of Deaf Canadians, it is backwards.
Two languages, not two codes for English and French
American Sign Language (ASL) and Quebec Sign Language (Langue des signes québécoise, LSQ) are natural languages with their own grammar, syntax and vocabulary. They are not English or French rendered by hand, and they are not dialects of one another. The Canadian Association of the Deaf puts it plainly: "These Sign languages have been recognized internationally as legitimate languages with their own grammar, syntax, and vocabulary." CAD-ASC draws a sharp line between ASL and LSQ on one side and invented systems like Signed English on the other, which it describes as attempts to "deform the true Sign language in order to make it conform to the grammar and syntax of a verbal language."
ASL is used mainly by anglophone Deaf communities across the country. LSQ is used mainly by francophone Deaf communities, concentrated in Quebec but also present in francophone Deaf communities elsewhere, including Sudbury, Ontario, and northeastern New Brunswick. Treating LSQ as "French ASL" or a regional variant gets the relationship wrong in both directions: it is not a dialect of ASL, and it is not signed French.
Canada's linguistic recognition of sign language does not stop at these two. The federal Accessible Canada Act also names Indigenous sign languages — Plains Sign Language, historically used by Cree, Dakota and Siksika nations (and by hearing people for inter-nation communication); Plateau Sign Language, used among Salish and Ktunaxa communities; and Inuit Sign Language in the Canadian Arctic. All are severely endangered, and ASL and LSQ have displaced them across most of the country. They are not variants of ASL — they are distinct languages with their own, separately precarious histories.
Why captions don't stand in for an interpreter
Follow the language point through and the practical consequence is straightforward. Captions deliver spoken audio as English or French text. For someone whose first language is ASL or LSQ, that text is a second language — read fluently by many, but for others, particularly those who grew up Deaf with limited exposure to written English or French in early education, a considerably weaker one than the sign language they think in. An event that is fully and accurately captioned can still leave a Deaf attendee working harder for less comprehension than a hearing attendee following the spoken audio directly.
We should be precise about what is and is not established law here. We could not find a single Canadian government or tribunal document stating "captions do not substitute for interpretation" in those exact terms, and we are not going to invent one. What we can point to is how Canadian institutions actually structure accommodation: Tribunals Ontario lists CART (real-time captioning), ASL and LSQ interpretation, and deaf-blind intervenors as separate, named accommodation options — not as one item with a substitute. CAD-ASC's own position is that quality captioning and sign language interpreting should both be mandatory, as distinct accommodations serving overlapping but different audiences. That is the clearest Canadian framing of the point, even short of a single codified rule.
What the Accessible Canada Act actually recognises
The Accessible Canada Act, S.C. 2019, c. 10, is the first federal law to name these languages explicitly. Section 5.1(2) states: "American Sign Language, Quebec Sign Language and Indigenous sign languages are recognized as the primary languages for communication by deaf persons in Canada." The Act received royal assent on June 21, 2019, and came into force July 11, 2019.
That recognition has a defined reach, and it is narrower than the language of the section might suggest on its own. The Act binds the federal public sector — departments, agencies, Crown corporations, the Canadian Forces, the RCMP, Parliament — and the federally regulated private sector. Employment and Social Development Canada describes that private-sector reach as "banks; the federal transportation network, including: airlines; rail, road and marine transportation providers that cross provincial or international borders; the broadcasting and telecommunications sectors." Outside those categories, the Act's recognition of ASL and LSQ as primary languages does not, on its own, create a legal obligation for how you run an event.
Where the federal recognition stops
This is the distinction most worth getting right. A provincially regulated Ontario business — including the great majority of AV and event vendors — sits under the AODA and the Ontario Human Rights Code, not the Accessible Canada Act. We covered what the AODA actually requires for captioning in a companion piece, and none of it flows from the federal sign-language recognition described above — they are separate statutes with separate scopes. An organisation is federally regulated because of what it is (a bank, an airline, an interprovincial carrier, a broadcaster), not because it happens to serve Deaf clients.
The Act also does not do two things that are commonly assumed. It does not give LSQ official status in Quebec. Quebec Deaf-community organisations — the Association des Sourds de Québec, the Fondation des Sourds du Québec, and others — have advocated for that recognition for roughly thirty years, including a formal request to the Quebec government in January 2014, reported by Radio-Canada. As of current sourcing, LSQ still has no official government recognition in Quebec. And Ontario's own 1993 recognition of ASL and LSQ, folded into the Education Act by Bill 4, is narrower still: it names them as languages of instruction for Deaf students in Ontario schools, not as officially recognised languages generally.
How interpretation is actually provided and regulated
Where captioning has a patchwork of technical and broadcast standards, sign language interpretation in Canada runs through its own professional infrastructure. The Canadian Association of Sign Language Interpreters (CASLI, formerly AVLIC) certifies ASL-English interpreters through its own Canadian Evaluation System — it is a Canadian certifying body in its own right, not a chapter of a US organisation. If you are arranging interpretation for an event, working with a CASLI-certified interpreter is the equivalent of the credential check you would already apply to a CART provider or a captioning vendor.
Interpretation also has its own separate regulatory track at the federal level. The CRTC administers Video Relay Service policy, which provides ASL and LSQ interpretation for telephone communication, with provisions addressing the DeafBlind community specifically — a distinct framework from the captioning-accuracy standards the CRTC also sets for broadcasters. Captioning quality and interpretation access are regulated separately because they solve different problems, not because one is a fallback for the other.
Planning for both, not choosing one
There is no single, reliable count of how many Canadians would need ASL or LSQ interpretation rather than captions. Statistics Canada's 2021 Census recorded 8,415 people reporting ASL as a mother tongue and 37,620 reporting conversational ability in it; for LSQ, the figures were 1,860 and 6,195 respectively. StatCan's own definition of "mother tongue" — the first language learned at home in childhood and still understood — structurally undercounts Deaf sign language users, most of whom are born to hearing parents and acquire ASL or LSQ later than infancy rather than as a childhood mother tongue. CAD-ASC's own estimate of roughly 357,000 culturally and profoundly Deaf Canadians is a considerably larger figure, but it is explicitly labelled by CAD-ASC as a projection derived from Canada-US population comparisons, not census data, with what the organisation itself calls "strong disclaimers as to the dependability and accuracy of any data." These numbers measure different things and should not be merged into one.
What follows practically is simpler than the numbers are precise. If you know or expect Deaf attendees at an event, ask whether they use ASL, LSQ, or prefer captions — and don't assume the answer from the language of the room. If interpretation is needed, that means booking a qualified, accredited interpreter well ahead of the event, since interpreters (like CART providers) are a scheduled professional service, not something arranged the morning of. Captioning remains worth doing regardless — it serves hard-of-hearing attendees, people following along in a second language, and anyone watching without sound, which is a much larger and different group than ASL/LSQ-first Deaf attendees. For the logistics of getting either into a live or hybrid event — audio routing, streaming setup, on-site staging — our streaming solutions and rental and event support pages cover the AV side, and captioning specifically is covered on our transcription services page. For the interpretation side, talk to us directly about what your specific event needs — this is a question worth answering event by event, not from a general rule.
Frequently Asked Questions
No. ASL and LSQ are separate natural languages, each with its own grammar and vocabulary. LSQ is used mainly by francophone Deaf communities, principally in Quebec but also in francophone Deaf communities elsewhere in Canada, while ASL is used mainly by anglophone Deaf communities. Neither is a signed version of English or French, and LSQ is not a regional variant of ASL.
It meets the obligations that specifically concern captioning, but it is not automatically equivalent to interpretation. For an attendee whose first language is ASL or LSQ, English or French captions are text in a second language. We could not find a single Canadian statute or tribunal ruling stating that captions cannot substitute for interpretation in those exact words, but Canadian institutions consistently list captioning and sign language interpretation as separate, named accommodations rather than one standing in for the other.
Not on its own. The Act applies to the federal public sector and to federally regulated private-sector organisations — banks, airlines, and rail, road or marine carriers crossing provincial or international borders, plus broadcasting and telecommunications. A provincially regulated Ontario business falls under the AODA and the Ontario *Human Rights Code* instead, neither of which derives its obligations from the federal Act's sign-language recognition.
No. Quebec Deaf-community organisations have advocated for official recognition of LSQ for roughly thirty years, including a formal request to the Quebec government in January 2014, but LSQ has no official government recognition in Quebec as of current sourcing.
There is no single agreed figure. Statistics Canada's 2021 Census recorded 8,415 people with ASL as a mother tongue and 37,620 with conversational ability, and 1,860 and 6,195 respectively for LSQ — but StatCan's "mother tongue" definition tends to undercount Deaf sign language users, who typically acquire sign language later in childhood rather than as an infant mother tongue. Advocacy estimates of the broader Deaf population run much higher but are explicitly framed by their source as projections, not census counts. Treat any single number you see quoted with that context attached.
The Canadian Association of Sign Language Interpreters (CASLI, formerly AVLIC) certifies ASL-English interpreters through its own Canadian Evaluation System. When arranging interpretation for an event, a CASLI credential is the equivalent check to a CART provider's certification for captioning.