What feature is required for new plumbing fixtures according to modern plumbing codes?

New plumbing fixtures are required to incorporate water-saving technology according to modern plumbing codes. This requirement reflects an increasing awareness of the need to conserve water and promote sustainability. The advent of stricter regulations across many jurisdictions aims to reduce overall water usage, encourage efficient consumption, and protect water resources. By mandating the use of fixtures that utilize water-saving features, such as low-flow toilets and faucets, plumbing codes are instrumental in shaping more eco-friendly practices in residential and commercial settings. This focus on water conservation helps address broader environmental concerns and is a key component of contemporary plumbing standards.

The other options may pertain to aspects of plumbing, such as inspections to ensure compliance with codes or design preferences for aesthetics, but they do not encompass the primary focus of modern plumbing codes, which is efficiency and conservation through technology.