Process for Submitting CLER Blackout Weeks — Five Weeks; Submitted Three Times Per Year. See the link for some important guidelines regarding submitting CLER Blackout dates! The first opportunity to schedule your CLER Blackout dates starts March 1st. https://www.acgme.org/What-We-Do/Initiatives/Clinical-Learning-Environment-Review-CLER/Site-Visit-CLER.