Most of the general work is governed by a general agreement for each business, negotiated through Construction Labour Relations Alberta. Please absolutely respect the different nocturnal rages of the agreement. General Construction (Carpenters) CBA is here: CARP – 2015 – 2019 Collective Agreement 2018-05-06. The agreement of the National Maintenance Council of Canada (NMA) is here. nma-alberta-province-wide-2017-19 To see which projects and areas of work fall under the GPMC, click here. . . .