Three-days worth of speakers are set to take part in the annual meeting from 25-28 February, which this year sees conservative lawmakers, activists and Republican Party officials converge in Orlando, Florida.
It follows recent criticism of Mr Trump’s role in the 6 January insurrection on the US Capitol, and a behind-the-scenes power struggle among Republicans in Congress.
Read more: Follow updates from the CPAC conference live
When is Donald Trump speaking?
Donald Trump will be the keynote speaker at the conference this year and will address the attendees in Orlando on Sunday afternoon.
Mr Trump is expected to take to the stage at around 3:40pm EST (8.40pm GMT) on Sunday, where he is rumoured to announce plans to run for president in 2024.
How to watch CPAC online:
All of the speeches will be live streamed on Independent TV, and on the CPAC 2021 website under the “Watch Live” tab, while certain high profile speeches are expected to be carried on a number of US networks, such as Fox News and CNN, throughout the weekend.
In the US, live streaming is also available as part of a subscription to Fox News’ streaming service, Fox Nation, which has exclusive access to CPAC 2021.