The WHAM6 "Fast Shutter" system and OMC were repaired and replaced, respectively, during the recent vent.  The logic for the fast shutter has been augmented,  reviewed, and tested (see recent alogs for test results).  A TRB review of the OMC-shutter incident took place this morning and their recommendation was to return to normal operations.  The new fast shutter monitoring and control software (ECR E1600246) should now be in place and in routine use. Commissioining may resume at the 50W input power level of interferometer operation.

This relieves LHO alog #29010, "Input power to be held to be < 25 W until technical review of fast shutter
Notice from LIGO Systems".