Building a home where the sewage leaks into the street or the electrical connections create a neighborhood fire hazard is prohibited by the uniform building codes that are adopted by states and localities across the civilized world. Those standards evolve as technology progresses.
There is no good reason why Utah should be behind the times in abiding by the new normal of energy-efficient home building practices. Yet the bill to adopt the latest version of the International Residential Code has come out of the House of Representatives with a needless exception that will cost homeowners, and the whole of the planet, a lot more than they will save by skimping on building costs.