@7mdish
Ive found a description of the measures taken when polar orbiting weather satellite NOAA 17 was decommissioned in 2013. Unfortunately in this case it didnt work & the satellite fragmented into over 40 pieces in March 2021
A U.S. weather satellite that retired eight years ago has fallen apart in orbit, breaking into at least 16 pieces, according to government representatives.
www.space.com
"When it was decommissioned, NOAA satellite operations turned off all the spacecraft transmitters, disconnected the batteries, opened thruster valves to deplete nitrogen and pointed the solar array away from the sun," agency officials wrote. "These steps were taken to ensure the satellite was as inert as possible and minimized the risk of radio frequency interference with other spacecraft after decommissioning."
These satellites are not moved into graveyard orbit as they are not geostationary- they are just abandoned after being safed.