OSHA 300 Log Summary Posting Dates by Kerry Simmons | Feb 3, 2015 | Craig Safety News | 0 comments OSHA 300 Log Summary posting dates, February 1 through April 30, 2015. Companies must display the 2014 summary page in their business so that everyone can view it. Click on the form below to get the OSHA 300 Log for 2015.