In 1995, LMSD became the first school district in Pennsylvania to utilizes buses fueled by compressed natural gas (CNG) in its fleet. Today, the District boasts the largest green fleet of CNG buses on the East Coast (72) and has been honored numerous times for its commitment to utilizing clean fuels in transportation.
- LMSD has been recognized by the U.S. Department of Energy as "Pennsylvania's primary success story for alternative fuels."
- CNG buses eliminate the use of more than 165,000 gallons of conventional liquid fuel per year in Lower Merion.
- LMSD is the only school district to serve on the Board of the Greater Philadelphia Clean Cities Council.
- LMSD Transportation has been named a top-fifty "Green Fleet" or Honorable Mention recipient in the United States by the "100 Best Fleets in North America" from 2012 through 2020, placing third in the country in 2012.