Photo Tool Comtrain Tower Safety For 20 Years! Photo Tool / Picture Upload Comtrain will be closed from Dec. 22 through Jan. 1 for the Christmas and New Year Holidays. We wish everyone a Safe & Happy Holiday Season! Start a new class: Instructor: Company: Class Dates: Tower City: Tower State: # of Students in Class: Telephone Number: Tip: To submit all students at 1 time hold the CTRL button down while selecting photos (JPEGs Only). Click OPEN to upload all highlighted pictures.