Does anyone know what the new requirements for the locations of these are. I have heard just outside of the bedrooms. I'm just not sure. Thanks

Yes, outside the bedrooms only is required.

In CT we have adopted a new requirement for CO detectors. If your new construction has any fuel burning appliances, a fireplace or an attached garage, a CO detector must be installed outside the sleeping area. If the house has two sleeping areas, then two interconnected CO detectors are required. AC powered with battery backup, just like smoke detectors. It is probally easiest to purchase combination CO/smoke detectors, and replace the smokie outside the bedrooms.
For re-models or any permitted work (except for exterior only work, i.e. windows, siding, roofing, deck) both smokies and CO detectors must be added at all the locations required for new construction. But, they don't have to be interconnected unless the rooms in question have been gutted, and battery only are permitted. Also, CO detectors for remodels where gutting has not occured may be plug-in types.
The mounting height of the CO detector is not important, as CO disperses throughout the room, and does not settle on the lower portions as CO2 does.

My understanding of CO detectors is that because the CO is dispersed through out the building by the appliance creating the CO only one unit is required to be effective. The reason they require outside the bedrooms is so they can be heard while people are sleeping in this area of the home. I have also heard that it is best to mount said detectors low because CO is heavier than air and settles. Am I wrong and should I move my to ceiling height?

I think that's already been answered-

The mounting height of the CO detector is not important, as CO disperses throughout the room

The density of CO is the same as air.

-Hal

[This message has been edited by hbiss (edited 12-03-2005).]

Thanks earlydean. If I had to install all co detectors I would lose a bundle on the job. Thanks again. Sam

Check the detector instructions for mounting location, we use a System Sensor CO detector for our alarms and they require 6 ft from the floor minimum.