Expertise according to Chemical Ozone Layer Ordinance Exemption

The competent authority may, on a case-by-case basis, exempt persons from the requirement of technical or craft training if the persons meet the conditions for registration in the craft role in a relevant craft or otherwise demonstrate that they are of comparable qualifications for technical or craft activities. The competent authority may seek an opinion from the competent association or professional association before taking a decision.

No documentation is required.