Labor - Knowledge - Safety is an easy way to test your level of knowledge in the field of labor safety.
The app is easy to use:
* Log in using your phone number or register on the tournament website
* Take tests in any convenient place with Internet access
* Keep track of personal statistics and place in the standings
The app is easy to use:
* Log in using your phone number or register on the tournament website
* Take tests in any convenient place with Internet access
* Keep track of personal statistics and place in the standings
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