The Occupational Safety and Health Act (OSHA) requires that employers post, for all employees to see, their safety record from last year. That was supposed to be posted on February 1 and is to remain up through the end of April.
If you had more than 10 employees and are not in the exempted industries list you must post the OSHA 300 A summary as of February 1, 2017 for the year 2016. The exempt industries list, generally considered as businesses classified as low hazard retail, service, finance, insurance or real estate industry. These businesses are not required to keep the records, unless there is a fatality. The list of exempted industries can be found here.
The forms for OSHA recordkeeping can be found here and are downloadable.
If you missed the deadline you need to get hopping and post that log summary. Technically you are in violation but if you get it up now you will be better off.