Altitude
Pilots are not authorized to leave their last assigned altitude unless specifically cleared to do so. If ATC amends the altitude or route to one that is different from the published procedure, the rest of the charted descent procedure is canceled.
TRANS LEVEL: BY ATC
In most countries throughout the world the change to or from the standard altimeter setting is not done at the same altitude for each instance. The local altimeter setting is specified by ATC each time they arrive at a specific airport. This information is shown on STAR charts outside the United States with the words: TRANS LEVEL: BY ATC
5,000 feet
Descent below 5,000 feet above the airport elevation is typically limited to an altitude where final descent and glideslope/glidepath intercept can be made without exceeding specific obstacle clearance and other related arrival, approach, and landing criteria.