A choice by the staff. It's not really a title anymore do to rating inflation anyways.
Chess.com's Candidate Master Titles

I don't think there is a CM title in USA. There are Experts (2000+), then National Masters (2200+). A FIDE CM is also 2200+, so they can be compared (although USCF ratings tend to be a bit higher).

WGM Pogonina, it used to be that way but it looks like they have changed. According to the USCF website, if you look at the profile of a player rated between 2000-2199, it says "Candidate Master."

yes it's at uschess.org
try this, you need to enter the name of a candidate master http://main.uschess.org/component/option,com_wrapper/Itemid,181/

I believe the people at the USCF are on crack. For the title " candidate master " it says the " highest norm based title earned " . This is very odd because I am an NM and got the title way back in 1984. The fide " CM " title doesnt require norms and is only based on a FIDE rating of 2200-2299 as far as I know. The uscf title of NM only requires a rating of 2200 ( or higher ) uscf and doesnt require "norms". This must be something completely new they have " sprung " out of nowhere just as they have recently started rating fide events that I play in here ! Have I been " demoted " from NM to CM now ?! The uscf also rates certain time controls now as BOTH quick and regular/classic chess.......this is ridiculous imo and they look more and more like clowns the older I get.

In USCF we used to call players rated 2000-2199 "experts" but some people called them candidate masters.
In a sense, everyone below 2200 is a "candidate" master. It's just that many of them are not VIABLE candidates!
Are the clowns at USCF actually going to create a new title? It's all about revenue. They'll no doubt charge a hefty fee for that piece of paper.
I didnt pay anything for the diploma/certificate I received in 1984 for NM title. Are they charging now ?! Personally, I think the people at the USCF are as screwed up as a can of fish bait....

How weird, I have never noticed the "candidate master" stuff before. I know that the concept was around but this is the first that I have seen it implemented. Here's the link to the USCF's pdf on "titles". Concerning the USCF rating of both quick and classical chess, if the time control is game in less than an hour the organizer has the ability to have it rated as both. In San Diego, they do it for their Saturday Gambito tournaments. Since few people care about their quick ratings, the organizer just does it until there are enough complaints.
www.glicko.net/ratings/titles-0509.pdf

I also dislike the duel ratings for quick and regular. And what's the shortest TC that can still be counted as standard, I forgot but remember that I thought it was too fast.

USCF has norm requirements for Candidate Master but not for Master.
FIDE does not have norm requirements for Candidate Master.
Chess.com recognizes FIDE Candidate Masters but not USCF CMs. I guess underlying it is contempt for the accomplishments of USCF experts.
American experts get no respect! No respect, I tell ya.

Yep - there is a USCF CM title, but the requirement is rly tooo low to be considered a "real" titled player. I think it's fair that USCF NMs are the weakest level of master that they consider "titled" here... normally FIDE titles start at 2200, and it would be pretty weird to have ppl rated equivalent to like 1900 FIDE be "titled", if you scale the ratings...
I was wondering how come chess.com doesn't honor the United States Chess Federation's Candidate Master title? It recognizes FIDE but not the USCF.