7. An agricultural worker who—
(a)provides documentary evidence to an employer that they hold a total of 8 qualifications which are either:
(i)awards or certificates of competence listed in the tables in Schedule 1;
(ii)National Vocational Qualifications relevant to their work; or
(iii)equivalent qualifications; or
(b)provides documentary evidence to an employer that they hold 1 of the awards or certificates of competence listed in the tables in Schedule 3 or an equivalent qualification; and
(c)who has either—
(i)been employed in agriculture for an aggregate period of at least 2 years in the last 5 years; or
(ii)been continuously employed for a period of at least 12 months or more by the same employer since obtaining the qualifications referred to in paragraphs (a) and (b),
must be employed as a worker at Grade 4.