The following applies for certification of corn single crosses and inbred lines: When excessive off-type or different textured kernels are observed at the time of ear inspection by the certifying agency and the off-type kernels are detectable in the shelled seed, the seed certification applicant may have the option of shelling the ears to attempt to remove the kernels by mechanical or other means. The sampled seed after conditioning must not contain in excess of three-tenths of one percent of the off-type kernels.