Resident farm laborers are certified differently, depending on the primary source of income. They are divided into laborers who work for one employer and those who work for a number of employers throughout the year. The certification periods and procedures differ for each category, depending on the predictability of household circumstances.

• (1) Single employer with stable income. Farm laborers whose primarily source of income is from regular farm employment with the same employer may be certified for periods up to one year providing that income can be readily predicted and household circumstances are not likely to change. Such households are normally employed for the entire year and receive a regular monthly salary.
• (2) Irregular income. In some instances, the household is paid for work done only during the work season but resides year-round on the farm and may receive advance or deferred payments during the non-work season. Where advance or deterred payments are not received, the household most likely will have income from another source and should be treated as a multiple employment household. The worker may experience some difficulty in assigning an income figure to the farm worker whose income is high during the work season and low during the non-work season when income is only from advances or deferred payment. Since the variation in income between the two cycles may be quite substantial, averaging income over the certification period might tend to inhibit participation of such households during the non-work period of low income. Even if income is prorated unevenly over the certification period to account for such variations, the income figure assigned during the low period might not be true representation of the cash readily available to the household. For this reason, consideration is given to certifying the household for lesser periods to take into account the income actually available to the household.
• (3) Multiple employers. Farm laborers who work for a number of employers during the farm work season and also receive income from varying sources during the non-work season may be certified from month to month if no readily discernible pattern of income receipt can be detected. Verification of income for this type of household is particularly difficult unless a pattern has been established over a certain period of time. A three month certification period is not assigned to these households if it would prohibit participation due to substantial fluctuations in the flow of income.