The owner or manager tells the contracted party the scheme's targets, carbon targets included, explains the part the chain plays in reaching the owner's carbon targets, goes back to its chain from time to time to find low-carbon techniques or products that could help its schemes, and looks for chances to work with the chain on growing low-carbon skills and capability.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.