Wikipedia:User access levels/User access level changes

Key to Rights

Yes	No
Y

Key to Project

Local	Global

		Event coord.	Administrator	Bureaucrat	Steward
Confirmed	give	Y	Y	Y	Y
	take	N
Extended confirmed			Y		Y
New page reviewer			Y		Y
Rollbacker			Y		Y
Autopatrolled			Y		Y
Edit Filter helper, Edit Filter manager			Y		Y
Event coordinator			Y		Y
Page mover, File mover			Y		Y
Template editor			Y		Y
Mass message sender			Y		Y
IP Block Exempt	give		Y	N	Y
	take			Y
Pending changes reviewer			Y	Y	Y
Account Creator			Y	Y	Y
Bot, Copyright violation bot				Y	Y
Administrator, Interface Administrator				Y	Y1
Bureaucrat	give			Y	Y
	take			N
Checkuser, Oversight					Y
Import					Y
		Event coord.	Administrator	Bureaucrat	Steward

^1 Because bureaucrats were granted the ability to do this, stewards would refer most ordinary requests for removal of the sysop permission to them, but retain the right to remove the sysop permission when appropriate (such as emergencies or requests from the Arbitration Committee).