A controversial new policy is set to take flight at Air India.

The airline is introducing new regulations that could subject cabin crew members to leave without pay based on their Body Mass Index (BMI) readings, according to multiple reports.

Set to take effect May 1, the policy categorizes a BMI range between 18 and 24.9 as “normal” and acceptable for flight, per airline guidelines obtained by The Economic Times. Meanwhile, a reading below 18 would be considered “underweight” and a reading between 25 and 29.9 would be classified as “overweight.”

Conversely, the airline’s incoming policy would define a BMI reading of 30 or above as “obese” and not acceptable for travel, resulting in an immediate removal from active flight rosters and loss of pay, outlets reported. Such individuals would have to submit to medical tests, including blood sugar and lipid profile checks, within seven days to determine underlying health risks, according to NDTV.

While crew members categorized as “underweight” or “overweight” may be deemed acceptable to fly after clearing specific medical and functional evaluations, the new guidelines would call for them to be derostered and placed on leave without pay if they fail to meet the new standards, per the reports.

Once the new rules take effect, non-compliant crew members will have 30 days to return to an acceptable BMI range or be issued a final warning, NDTV reported, adding that BMI checks will be conducted both before and after flights.

The policy is intended to “promote awareness of maintaining a healthy lifestyle,” according to The Economic Times, in hopes that staff will familiarize themselves with how to maintain an “appropriate” weight class.

“The current policy, in the interim, serves as a preparatory measure,” the airline said in its “Cabin Crew Health and Fitness Compliance Policy” document, per the outlet, “before the policy with enhanced fitness standards is implemented.”

E! News has reached out to Air India for comment but has not heard back.