The Public Service Commission (PSC) has approved a new grading system in the Prison Department.
The move is aimed at harmonising pay.
Two ranks were collapsed in the new structure that saw 14 retained, with the rank of Commissioner General being the senior-most.
In a memo to his juniors, Prisons Commissioner General Wycliffe Ogallo said he had been authorised to upgrade and promote officers of the rank of a chief inspector under delegated authority and in accordance with the set criteria.
Upgrading and filling vacant posts in the rank of superintendent of prisons and including that of Deputy Commissioner General of Prisons will be submitted to PSC for action.
In the new ranking, the Commissioner General of Prisons is in pay grade 14 and job group U, Deputy Commissioner General in grade 13 and group T while Senior Assistant Commissioner General is in grade 12 and group S.
Assistant Commissioner General is in grade 11 and group R, Deputy Commissioner is in grade 10 and group Q and Assistant Commissioner is in grade 9 and in group P. Lying in group N and grade 8 is Senior Superintendent of Prisons while a superintendent is in group M and grade 7.
According to the memo, a chief inspector is in grade 6 and group L, inspector is in grade 5 and group K, Senior Sergeant is in grade 4 and group J, a sergeant is in grade 3 and group H. A corporal lies in grade 2 and group G while the junior most in the ranking, a constable, is in grade 1 and group F.
And following the PSC move, Ogallo announced 56 officers who have served for more than 20 years in the rank of corporal will be given priority for promotion to the rank of senior sergeant.