The mark consists of the word "STERN" in stylized capital letters, appearing in dark blue, with a stylized letter "S" to the left of the word. To the far right of the first word "STERN" appears a gray stylized outline of a shield, which is outlined heavily but with two portions of the outline missing on the left and right side. Inside of the shield outline and near the top, is the word "STERN" in stylized capital letters, appearing in dark blue, with a stylized letter "S" to the left of the word. Below the "T" of the word "STERN" is a droplet appearing in orange, which is set above a portion of a gear appearing in dark blue. The droplet and gear are set above an orange banner, which appears across the outline of the shield, containing the words "EQUIPMENT GUARD" in stylized capital letters appearing in white, whereas the word "EQUIPMENT" is stacked above the word "GUARD" across the banner. Below the "RN" of the first word "STERN" on the left, and below and to the left of the outline of the shield, appears the stylized word "ATOMIC" appearing in light blue, except for the letter "O", which is stylized to resemble an atomic helix model appearing in dark blue in place of the "O", and with one dot in the center of the atomic helix model appearing in light blue, which is stylized to represent an electron. Stacked below the word "ATOMIC" is the stylized word "DIESEL" appearing in dark blue.