New Orleans-based Entergy Services, which operates three Citation 650s, has become the first U.S. company whose flight department has been issued an International Standard for Business Aircraft Operations (IS-BAO) certificate. The certificate was presented to Oliver Townbridge, Entergy’s manager of aviation and travel, by the International Business Aviation Council. IS-BAO is a code of best practices designed to assist flight departments in achieving a high level of safety and professionalism. Since becoming available last year, more than 140 IS-BAO packages have been sold. The price for NBAA members is $950; nonmembers pay $1,400.