- December 11 - Year-end hours of service
- October 1 - Changes to Colorado Charitable Solicitations Act effective October 1, 2018
- September 21 - Notice of Temporary and Permanent Adoption – Charitable Solicitations Rules (PDF)
- July 19 - The Federal Trade Commission and the National Association of State Charity Officials announce “Operation Donate with Honor”
- February 1 - Secretary Williams releases report on charitable organizations
- February 1 - 2017 Annual Report on Charitable Solicitations - Secretary Williams Interview