We use the following in the company I work for.
Excerpt from POLICY AND PROCEDURES FOR THE USE OF TCAS/ACAS:
"In order to avoid the generation of erroneous warnings, vertical speed
should be limited to no more than 1 500 fpm when within 2 000 ft of the
assigned altitude and in the close proximity (ca. 2 NM) of other aeroplanes."
RVSM:
"During the last 1 000 ft during climb and descent to the cleared flight
level, the rate of climb or rate of descent should be within 1 000 ft/min.
The overshoot or undershoot of the cleared flight level shall not exceed
150 ft."
TS737