(a) If there shall be practical difficulties or unnecessary hardships in carrying out a rule of the Director of the Division of Labor, the director may, after public hearing, make a variation from such requirement if the spirit of the rule and law shall be observed.
(b) Any person affected by the rule, or his or her agent, may petition the director for a variation, stating the grounds therefor.
(c) The director shall fix a day for a hearing on the petition and give reasonable notice to the petitioner.
(d) A properly indexed record of all variations made shall be kept in the office of the Department of Labor and open to public inspection.