If an employment contract has a term of not less than three months but less than one year, the probation period may not exceed one month; if an employment contract has a term of more than one year and less than three years, the probation period may not exceed two months; and if an employment contract has a term of not less than three years or is open-ended, the probation period may not exceed six months. An Employer may stipulate only one probation period with any given Employee. No probation period may be specified in an employment contract with a term to expire upon completion of a certain job or an employment contract with a term of less than three months. The probation period shall be included in the term of the employment contract. If an employment contract provides for a probation period only, then there is no probation period and the term concerned shall be the term of the employment contract.