#	Federal Register
1	10/04/2016 - 1926.201, 1926.201(a) - 81:68504-68685 - Standards Improvement Project-Phase IV; Proposed Rule - PDF
2	12/06/2012 - 1926.201 - 77:72781-72783 - Standards Improvement Project--Phase IV - PDF
3	05/04/1972 - 1926.201 - 37:9024 - Signaling

#	Regulations
1	06/13/2013 - 1926.201 - Signaling.

#	Letters of Interpretation
1	01/04/2011 - 1926.201 - Concern about unclear traffic directing at highway construction areas and about laws to follow when the normal traffic control of a roadway is suspended.
2	08/05/2009 - 1926.201, 1926.201(a) - Whether use of high-visibility warning garments by construction workers in highway work zones is required.
3	01/31/2006 - 1926.201, 1926.201(a) - Highway work zones and reflective/warning vests for the protection of off-duty police officers working as flaggers.
4	05/11/2004 - 1926.201, 1926.201(a) - Requirements for use of high-visibility warning garments by construction workers in highway work zones.
5	12/08/2003 - 1926.201, 1926.201(a) - Substitution of phosphorescent helmets for retroflective garments does not meet high-visibility clothing requirements for flaggers.
6	03/11/2002 - 1926.201 - Safety vest requirements to protect flaggers from traffic hazards during construction work.