251.23—Manual category.
(a)
Those manual-type occupational groupings that elsewhere in the Federal government are usually covered by the Federal Wage System, i.e., those that encompass the unskilled, semi-skilled, and skilled manual-labor occupations in the trades, crafts, and related employment. This category does not include those positions that are specifically excepted and placed in the special category.
(b)
The PAPB shall prescribe standards for grading manual category jobs. Whenever a job-grading standard under the Federal Wage System is utilized, the PAPB shall modify it if necessary to take into account any significant differences in knowledge, skill, or responsibility requirements that are found between the job covered by the Federal Wage System standard and the Canal Area position to which it is applied.