(a) Classes of service covered. Conditions under which remuneration with respect to a day may not be payable to or accrue to an employee solely because of the application to him of a mileage or work restriction exist in train-and-engine service, yard service, dining-car service, sleeping-car service, and other Pullman-car service, and similar service, and express service on trains. In the determination of a claim for benefits of an employee in any other service, the employee's lack of remuneration with respect to any claimed day shall be presumed not to be due solely to the application of a mileage or work restriction. Conditions under which remuneration with respect to a day may not be payable to or accrue to an employee solely because he is standing by for or laying over between regularly assigned trips or tours of duty exist in train-and-engine service, dining-car service, sleeping-car service, and other Pullman-car service, and similar service, and express service on trains. In the determination of a claim for benefits of an employee in any other service, the employee's lack of remuneration with respect to any claimed day shall be presumed not to be due solely to his standing by for or laying over between regularly assigned trips or tours of duty.

(b) Sickness claims. An employee who, in connection with a claim to a day as a day of sickness, is held to be not able to work because of any physical, mental, psychological, or nervous injury, illness, sickness, or disease shall not be considered to lack remuneration with respect to such day solely because of the application to him of mileage or work restrictions or solely because he is standing by for or laying over between regularly assigned trips or tours of duty. Nor shall a female employee be considered to lack remuneration with respect to a day solely because of the application to her of mileage or work restrictions or solely because she is standing by for or laying over between regularly assigned trips or tours of duty if the day is one on which, because of pregnancy, miscarriage, or the birth of a child, (1) she is unable to work or (2) working would be injurious to her health.

Subject to the provisions of § 332.2(b), a day shall not be considered as a day of unemployment or as a day of sickness with respect to an employee if no remuneration is payable or accrues to him solely because of the application to him of a mileage or work restriction agreed upon in a written agreement between his employer and employees of his employer, or authorized pursuant to such written agreement. Provisions of agreements setting overtime or other premium rates of pay shall not be regarded as work restrictions. Mileage or work restrictions shall be considered as applicable to an employee with respect to any day on which he is out of service because of having reached or exceeded the maximum mileage, earnings, or hours of work prescribed in such an agreement, or authorized pursuant to such an agreement. Performance of other work by an employee while he is out of service because of having reached or exceeded the maximum mileage, earnings, or hours of work shall not serve to make the mileage or work restriction inapplicable to him.

Mileage or work restrictions shall be considered to exist in rotating extra board, pool, or chain gang service when there is in effect an arrangement between the employer and its employees for increasing or decreasing the number of employees in such service according to the amount of work available. When the arrangement is such that an employee in extra board, pool, or chain gang service gets the equivalent of full-time work, his lack of remuneration on any non-work day shall, subject to the provisions of § 332.2(b), be considered as due solely to the application to him of a mileage or work restriction.

An employee who has the equivalent of full-time work with respect to service on days within a registration period is not eligible for unemployment benefits for any non-work days within such registration period. In determining whether an employee has the equivalent of full-time work, the Board will consider the provisions of labor-management agreements that prescribe the number of miles or hours of credit constituting a basic work day, week, or month in the employee's occupation or service. The Board will consider that an employee had the equivalent of full-time work if the number of miles or hours credited to the employee for service in the registration period is at least 10 times the number of miles or hours constituting a basic day in the employee's occupation or service. For this purpose, any miles or hours of credit not earned because the employee missed his or her turn and any penalty miles assessed to the employee shall be added to the miles or hours of credit actually earned on the basis of service on days within the registration period.

Subject to the provisions of § 332.2(b), a day shall not be considered as a day of unemployment or as a day of sickness with respect to an employee if no remuneration is payable or accrues to him solely because he is standing by for or laying over between regularly assigned trips or tours of duty. Only employees who hold regular assignments may be regarded as standing by for or laying over between regularly assigned trips or tours of duty. In determining whether an employee has a regular assignment, consideration shall be given to whether the trips or tours of duty have definite starting times; whether there are a definite number of trips or tours of duty, either periodically or for the whole duration of the assignment; and whether there is a definite route of each trip or definite duration of each tour of duty. An employee who is separated from a regular assignment shall not be regarded as standing by for or laying over between regularly assigned trips or tours of duty. An employee shall be deemed separated from a regular assignment when he is suspended or discharged from service or displaced by a senior employee or held out of service for investigation or discipline, or when his regular assignment is abolished or discontinued.

An employee shall be requested to furnish such information as to any mileage or work restrictions or as to lay-over or stand-by status as may be necessary for the determination of his claim. An employee's statement in connection with his claim that he was not out of service because of a lay-over or stand-by rule or because of a mileage or work restriction shall, in the absence of evidence to the contrary, be accepted as sufficient for a finding on that point. An employee's report of the number of miles or hours' credit earned in rotating extra board, pool, or chain gang service shall, in the absence of evidence to the contrary, be accepted as correct for purposes of determining whether he had the equivalent of full-time work during the period covered by his claim. When it appears clear that an employee in rotating extra board, pool, or chain gang service who fails to report the number of miles or hours' credit earned on days in the period covered by his claim form was not employed on enough days to have had the equivalent of full-time work in the period, no additional information as to mileage or work restrictions shall be deemed necessary for the determination of his claim.