ASL Interpreting vs CART Captioning: Which Communication Access Service Do You Need?
When planning an event, meeting, training, medical appointment, or virtual webinar, one of the most common questions organizations ask is: Do we need ASL interpreting or CART captioning?
Understanding ASL Interpreting vs CART Captioning is one of the most important steps in creating meaningful communication access for Deaf and hard of hearing participants.
While both services support accessibility, they do so in different ways based on language preference, communication style, and the setting itself.

What Is ASL Interpreting?
ASL interpreting provides communication access through American Sign Language. A professional interpreter facilitates communication between spoken English and ASL in real time.
This service is best for individuals whose primary language is ASL and who prefer visual language access over written English.
Common settings include workplace meetings, healthcare appointments, conferences, educational environments, legal appointments, and virtual webinars.
What Is CART Captioning?
CART stands for Communication Access Realtime Translation. It converts spoken language into live, highly accurate text displayed on a screen or personal device in real time.
When comparing ASL Interpreting vs CART Captioning, CART is ideal for people who prefer to read spoken content instead of receiving it through sign language.
This is especially useful for webinars, business meetings, training sessions, lectures, and events where participants may also benefit from a transcript afterward.
Key Differences Between ASL Interpreting vs CART Captioning
The biggest difference in ASL Interpreting vs CART Captioning comes down to how the individual best accesses communication.
Choose ASL Interpreting when:
-
The participant’s primary language is ASL
-
They prefer visual signed communication
-
The setting includes active discussion
-
Cultural and language nuance matters
Choose CART Captioning when:
-
The participant prefers written English
-
The event is presentation-heavy
-
Multiple speakers are involved
-
A transcript is helpful afterward
In many cases, the best solution may include both.
Why Asking First Matters
The most effective way to decide between ASL Interpreting vs CART Captioning is to ask participants what support they need.
Some attendees may rely on ASL for direct communication, while others may prefer CART for easier reading and note-taking.
Accessibility works best when it starts with asking, not assuming.
Work With the Right Accessibility Partner
At MT & Associates, we help organizations determine whether ASL interpreting, CART captioning, or both will best support their audience.
From virtual meetings to nationwide events, our team helps make communication access seamless.
Explore more accessibility insights and service tips on the MT&A blog