If you have a job subject to a previous edition of NAAWS, you can access that PDF below:

NAAWS 3.1 2018 Errata U.S. Edition – English – Effective date July 1, 2019

NAAWS 3.1 2018 Errata Canadian Edition – English – Effective date July 1, 2019

NAAWS 3.1 Canadian Edition – French – Effective date July 1, 2019

NAAWS 3.1 Edition – English – Effective date July 1, 2017

NAAWS 3.0 Errata Edition – includes errata through June 30, 2017.

NAAWS 3.0 – Published May 2, 2016. Effective date July 1, 2016