According to the CDC, "BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems."
A person's BMI score is used as a tool to screen for obesity or excessive body fat that could lead to other health problems. While it does not actually measure body fat directly, according to CDC, the BMI scores generally correlate with a person's body fat percentage.
The new regulations also stipulate that the new electronic records be capable of sending public health data to state and federal health agencies such as HHS and CDC. The CDC, which calls American society "obesogenic" – meaning that American society itself promotes obesity – collects BMI scores from state health agencies every year to monitor obesity nationwide.
"Electronically record, retrieve, and transmit syndrome based public health surveillance information to public health agencies," the regulations read.
With the spread of electronic health records, the CDC apparently will be able to collect such data more efficiently and with greater accuracy because the electronic record keeping systems can send the data automatically, eliminating the need for government – both state and federal – to keep, send, and process physical records.