This item Shall consist of the sirloin butt portion of the tenderloin. The sirloin or butt end shall expose the psoas major, psoas minor, iliacus and if present, the sartorius. Further, the obliquus abdominis internus or flap if also present, shall be trimmed level with the flat surface. The anterior or short loin end shall be exposed by a straight cut that displays the psoas major and the psoas minor muscles no further along the length of the tenderloin than 0.5 inch (13 mm) beyond the iliacus. The surface and wing fat shall be trimmed practically free. The large lymph gland shall be exposed. A score into the butt tenderloin exceeding 0.5 inch (13 mm) is not acceptable.