U.S. standards for summer and fall pears are U.S. No.1, U.S. Combination and U.S. No.2 and for winter pears, U.S. Extra No.1, U.S. No.1, U.S. No. Combination and U.S. No.2.

Example of Bartlett Grades standards.

U.S. No.1 consists of pears of one variety which are mature but not overripe, carefully handpicked, clean, fairly well formed, free from decay, internal breakdown , scald, freezing injury, worm holes, black end, and from damage caused by hard end, bruises, broken skin, russeting, limb rubs, hail, scars, drought spot, sunburn, spray burn, stings, or internal breakdown.  Decay scald or other discoloration which may have developed on pears after they have been in storage or transit shall be considered as affecting condition and not grade.