5.3. The following are eligible for the qualification examination for a specialty:(1) for the specialty of security systems installer, an apprentice electrician who has completed 3 periods of apprenticeship related only to work pertaining to the specialty;
(2) for the specialty of operator of concrete pumps equipped with a distribution mast, an apprentice crane operator who has completed a period of apprenticeship related only to work pertaining to the specialty;
(3) for the specialty of deep foundation installer, concrete former or flooring-layer-sander, an apprentice carpenter-joiner who has completed 2 periods of apprenticeship related only to work pertaining to the specialty concerned.