In October 2019, the FCC introduced a regulation to supply floor level information for emergency calls. To achieve this goal, the FCC agreed on a directive that requires all emergency calls to ensure 3 m z-axis accuracy. Barometric measurements are the most promising method to estimate the altitude, especially in high-rise buildings. US network operators have adopted barometric sensor based technologies to meet the requirements of the new directive.
The directive requires all mobile devices in a network to be certified and fulfil FCC specifications. Currently, in many mobile devices the barometric pressure performance is low and does not meet the strict FCC regulations. Therefore, many devices are highly susceptible to z-axis performance.
To sell mobile devices in the United States, suppliers have to make sure that they fulfil this directive. All mobile network carriers in the Unites States are requested to self-certify compliance of their devices or have them tested at validated test houses.
Is the FP3 certified for this? I am not aware of a similar regulation required in Europe.