Descent on a STAR UK vs ICAO
Hello!
I'm just after some clarification on descent clearances issued on STAR's in the UK and ICAO operations.
In the UK, as I understand, when an aircraft is cleared for a STAR, this is just the lateral navigation (waypoint to waypoint) as descent is always commanded by ATC, stated FL/Alt restrictions are for planning only.
Are ICAO rules different and vary by state?
In some states would a controller expect the aircraft to descend in accordance with the published STAR, despite no actual descent clearance being issued?
Does anyone have a document to confirm these rules?
Many Thanks