Pressure calibration is a moving target. Standards that defined uncertainty limits two years ago may be revised; a sensor technology that was experimental can become the default in a new instrument class; and compliance deadlines in regulated industries rarely arrive with much warning. Teams that follow industry news keep their calibration programmes traceable, avoid retiring equipment or procedures for the wrong reasons, and spot the specifications that will shape their next purchase. We update this section regularly, and the most practical stories are linked from our buying guides and product pages.Most of these shifts trace back to work by national metrology institutes like NIST or standards bodies like ISO, so following their publications is the fastest way to stay ahead of a revision.