Yes, it has a BELT, not a chain.
It does not have a cam belt it has a cam chain that requires no replacement.
Honda's recommendation is 105,000 miles.
The 2008 Honda CRV has a cam (timing) chain the normally requires no maintenance.
Belt.
All 1996 Honda vehicles have a cam belt. Warning: They are all interference engines.
The 2011 Honda CRV has a cam chain and not a belt. It normally will last the life of the engine and no maintenance is required.
90,000 miles
The 1996 Honda Accord is an interference engine so in almost every case you will have valve and possibly piston damage if the cam belt breaks.
Your 2003 four-cylinder Honda CRV has a timing chain. No maintenance is required and they are normally replaced during a complete engine overhaul.
Cam Belt
The 1997-2001 Honda CRV with the 2.0L 4 cylinder uses a timing belt. 2002-up use a chain. The water pump is also driven by the cam belt. To save yourself money later on, replace the water pump at the same time as you replace the belt. The belt MUST be replaced at 105,000 miles or 10 years. Failure to replace the belt may result in severe engine damage as this is an interference engine.
V6 has a cam belt. I4 has a cam chain.