Master`s contracts can also be used strategically for other purposes, such as organizing and dismantling employers` opposition to collective bargaining. In Canada, unions have used master contracts to organize thousands of new workers. A master contract has tended to weaken an employer`s opposition to the spread of trade unionism to disorganized construction sites or departments, and some sectors and markets welcome the standardization of wages and ancillary benefits that union training entails.  In the United States, some unions have attempted to enter into framework agreements that provide for a neutrality agreement, a code of conduct for the organization of elections, or neutral control of an election by third parties in order to facilitate the organization of trade unions.  Some major agreements even provide that new workers are automatically covered by the framework contract.  Master`s negotiations also reduce the likelihood that employers will refuse to negotiate or attempt to continue in the workplace.  Some union members criticize the fact that contracts on the disappearance of local disputes are undemocratic.  Many critics point out that master`s contracts that impose certain basic employment conditions (such as wages, ancillary benefits, pensions and certain working conditions) are nothing more than corporate unionism.  In the United States, unions in California and Ohio engage in fierce discussions on such master`s agreements.  Master`s contracts are common in the automotive industry, shipping, express parcels, mining (particularly the coal industry) and manufacturing in general. For example, the UAW and the „Big Three“ of American automakers tend to operate on this model: the union chooses a manufacturer with whom it conducts most of its negotiations; if an agreement is reached, the union tries to apply the same contract to others.  Other areas where master`s contracts can be found are tire manufacturing, public education, cooking, accounting and domestic economics and public health.
 The CBHC and the future of the CHW model depend in part on the search for a series of practical answers on how the CHW will be paid itself.