29 CFR 1926 - OSHA Construction. Subpart G - Signs, Signals, and Barricades. Data is current as of September 1, 2020. For future updates please install our OSHA Construction App: Contents: §1926. 200 - Accident prevention signs and tags. §1926. 201 - Signaling. §1926. 202 - Barricades. §1926. 203 - Definitions applicable to this subpart.