BLS TO RELY ON SECONDARY SOURCES, 'NON-TRADITIONAL METHODS' FOR WIRELESS SERVICE DATA With BLS staffing levels and CPI data collection under scrutiny, the BLS says it will change its methodology for collecting data on wireless phone service prices. The agency says that starting in the July inflation data, "BLS will replace the survey data collected for the CPI's wireless telephone services index with secondary source data and non-traditional index methods," the agency writes in a release accompanying the May inflation data. The BLS didn't add information about the reason for the change, but says it will publish a paper on the new methodology in July.