The best online sources of information for what is required to work as a contractor in Oregon and/or Washington are the websites of the contractor regulatory agencies of those states. Included in their information are the general liability insurance limits and the bond limits contractors are required to carry.
The information link to the Oregon Contractors Construction Board is http://www.oregon.gov/CCB/Contractor_Help.shtml.
The information link to the Oregon Oregon Landscape Contractors Board is http://www.oregon.gov/LCB/licensing.shtml.
The information link to the Washington Bureau of Labor and Industries is http://www.lni.wa.gov/TradesLicensing/Contractors/HowReg/default.asp.
For information regarding Oregon Workers' Compensation Insurance, go to the Oregon Workers" Compensation Division web page at http://www.cbs.state.or.us/wcd/.
In the State of Washington, Workers' Compensation Insurance can be obtained only through the state. It is not available from insurance agents. For Washington information, go to http://www.lni.wa.gov/.