Report from BBC website
Chief ICC referee Ranjan Madugalle is chairing the two-day hearing, set to start at 1000 BST, with a verdict expected on Friday.
Inzamam refused to lead his side out onto the field after being penalised for ball-tampering.
He drove into The Oval and was accompanied by coach Bob Woolmer.
Madugalle was the first to arrive at 0830 BST, followed 15 minutes later by umpire Billy Doctrove, who got out of a taxi with match referee Mike Procter and Doug Cowie, the ICC's umpires manager.
Inzamam headed to The Oval just after 0900 BST, just before umpire Darrell Hair turned up in a taxi.
Hair said: "No comment - good to see you all."
After the first day of the hearing, the ICC expects to issue a statement detailing the day's events and an update on when the verdict is likely.
If Inzamam is found guilty of the ball-tampering he faces a fine of between 50 and 100% of his match fee. He could also be banned for one Test or two one-day internationals.
On the second charge, deemed more serious by the ICC, a ban of between two and four Tests or four to eight ODIs is a possibility.
All four umpires on duty for the game between England and Pakistan will attend the hearing.
Hair and Doctrove were the officials out in the middle, with Peter Hartley and Trevor Jesty providing off the field back-up.
Madugalle will consider testimony and written statements from witnesses, many directly involved with events which culminated in the abandonment of the Test after Pakistan were deemed to have refused to play on after tea on the fourth day.
The three England players involved - Kevin Pietersen, Paul Collingwood and Ian Bell - have provided written statements and will not appear in person.
But Oval match referee Mike Procter and ICC umpires and referees manager Doug Cowie, who was at the match on the day in question, will be at the hearing in south London.
Cowie was also the recipient of a subsequent e-mail from Hair, in which he offered to resign in exchange for $500,000 (£263,000).
Pakistan's representatives include coach Woolmer and board chairman Shaharyar Khan as well as Inzamam.
The PCB is expected to call former England batsman Geoffrey Boycott and former player and now analyst Simon Hughes as expert witnesses.
The PCB's legal team will be headed by London-based Mark Gay.
Madugalle will be assisted by David Pannick QC.
Looking back on his actions, Inzamam told the Guardian: "Definitely, I did feel some pressure.
"But inside I resolved that I had done nothing wrong and was satisfied with my actions."
Chief ICC referee Ranjan Madugalle is chairing the two-day hearing, set to start at 1000 BST, with a verdict expected on Friday.
Inzamam refused to lead his side out onto the field after being penalised for ball-tampering.
He drove into The Oval and was accompanied by coach Bob Woolmer.
Madugalle was the first to arrive at 0830 BST, followed 15 minutes later by umpire Billy Doctrove, who got out of a taxi with match referee Mike Procter and Doug Cowie, the ICC's umpires manager.
Inzamam headed to The Oval just after 0900 BST, just before umpire Darrell Hair turned up in a taxi.
Hair said: "No comment - good to see you all."
After the first day of the hearing, the ICC expects to issue a statement detailing the day's events and an update on when the verdict is likely.
If Inzamam is found guilty of the ball-tampering he faces a fine of between 50 and 100% of his match fee. He could also be banned for one Test or two one-day internationals.
On the second charge, deemed more serious by the ICC, a ban of between two and four Tests or four to eight ODIs is a possibility.
All four umpires on duty for the game between England and Pakistan will attend the hearing.
Hair and Doctrove were the officials out in the middle, with Peter Hartley and Trevor Jesty providing off the field back-up.
Madugalle will consider testimony and written statements from witnesses, many directly involved with events which culminated in the abandonment of the Test after Pakistan were deemed to have refused to play on after tea on the fourth day.
The three England players involved - Kevin Pietersen, Paul Collingwood and Ian Bell - have provided written statements and will not appear in person.
But Oval match referee Mike Procter and ICC umpires and referees manager Doug Cowie, who was at the match on the day in question, will be at the hearing in south London.
Cowie was also the recipient of a subsequent e-mail from Hair, in which he offered to resign in exchange for $500,000 (£263,000).
Pakistan's representatives include coach Woolmer and board chairman Shaharyar Khan as well as Inzamam.
The PCB is expected to call former England batsman Geoffrey Boycott and former player and now analyst Simon Hughes as expert witnesses.
The PCB's legal team will be headed by London-based Mark Gay.
Madugalle will be assisted by David Pannick QC.
Looking back on his actions, Inzamam told the Guardian: "Definitely, I did feel some pressure.
"But inside I resolved that I had done nothing wrong and was satisfied with my actions."