Cities around the country, including here in Colorado, are beginning to require that landlords make apartment housing more energy efficient. One of the toughest new efforts is taking place in Boulder. The city council will take up what’s called the SmartRegs initiative in September. It would require landlords to do things like put in energy star dishwashers, change light bulbs to compact fluorescents, or even take more extreme steps like install solar panels. SmartRegs would be voluntary for a few years. But by 2019 those regs would be mandatory. We talk with David Driskell. He's executive director of community planning and sustainability for Boulder. His department is behind these SmartRegs. We also hear from Sheila Horton with the Boulder Area Housing Association.