how names are placed on eligible list and mode of
certification to postmasters.
usually it takes from three to six months to rate all papers after an examination. candidates that make 70 per cent. or over are then notified of their relative standing. the period of eligibility for original appointments is one year from the date of entering the name on the register.
when a name has been placed upon a register it is not disturbed until a postmaster calls for a list of eligibles. then the proper number of names are certified to him and he chooses those he needs. the names of all others are returned to the eligible register to await further certifications.
in making appointments the postmaster has the privilege of selecting one out of three down the list: if he had but one vacancy he could select the third name, but could not take the fourth; he also is permitted to appoint in regular order straight down the list, if he so choose.
[89]
the probationary period for letter carriers and clerks begins upon their promotion to the regular force and not at the date of original appointment as substitutes. the period of probation is limited to six months and cannot be extended. at its close a probationer must either be absolutely appointed or dismissed.