This measure does not mean that employers and providers are exempt from ensuring that workers have adequate safety competencies.

GWO Safety Training normally has a validity period of 24 months. To maintain the validity of the training, a refresher course must be taken (refresher course). If the refresher training is completed during the last 60 days before the expiration date, the validity period will be extended 24 months. This remains in effect.

Participants who expire the validity of their training are usually not able to extend the validity through a refresher course, but are required to participate in an initial course to obtain a new certificate (see Note 1).

However, GWO has agreed to allow as a temporary measure until June 1, 2020 that:

1.    Course participants who cannot refresh their training within the 24-month validity period will have the opportunity to attend the refresher course up to 60 days after the expiration date.

2.    Training centers offering refresher courses to course participants under this exception should contact GWO for more specific instructions.


The measure of allowing participation in refresher courses up to 60 days after the expiration date does not constitute an extension of the established validity period of GWO, nor does it imply that employers and managers are exempt from guaranteeing that workers have the adequate safety skills. The employer has the prerogative to make the decision to require valid training or to make an exception.

Until such time as GWO training can resume as normal, we encourage employers who employ technicians whose training is about to expire and who have valid reasons, to consider making exceptions and to take other steps to maintain the necessary safety capabilities, in whatever way is convenient in the local context, for example, through exercises and supervision of managers. It is important that affected people continue to be trained to do their jobs safely and that they do not pose a risk to themselves or others around them during the interim period.

The 24-month validity of most GWO training courses has been approved due to the natural deterioration that occurs over time in the capabilities of workers observed by GWO members, and also to align with legal requirements launched for the same reasons in various jurisdictions around the world.

The deterioration of skills refers to either the loss of skills acquired by not putting them into practice during daily work (such as the First Aid / First Aid course), or the gradual deviation from correct and safe practical abilities that are acquired during training.

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