There must be a showing that employment of foreign workers will not adversely affect wages or working conditions of domestic workers. Third. Employment offered domestic workers must provide(A) Wage rates not less than those set out in schedule A during JanuaryMarch 1965-$0.90 to $1.25 per hourand not less than those set out in schedule B after March 1965-$1.15 to $1.40 per hour. (B) A written contract embodying at least the terms and conditions offered Mexican workers under the Migrant Labor Agreement of 1951. (C) Family housing where feasible and necessary. and Fourth. Transportation costs must be borne by the employer. No foreign worker would be certified for employment for a period exceeding 120 days. nor could certification be made to permit any employer to employ foreign workers for more than 120 days per year. except in specific cases.