That recommendation changed ~4.5 years ago to be 45 and older.
https://www.cdc.gov/cancer/colorectal/basic_info/screening/i....
https://www.cdc.gov/cancer/colorectal/basic_info/screening/i....
However, you may need to be tested earlier than 45, or more often than other people, if you have—
Inflammatory bowel disease such as Crohn’s disease or ulcerative colitis.
A personal or family history of colorectal cancer or colorectal polyps.
A genetic syndrome such as familial adenomatous polyposis (FAP)external icon or hereditary non-polyposis colorectal cancer (Lynch syndrome).