Cash grain markets have premiums and discounts for quality characteristics that are important to individual market participants. Premiums and discounts are determined by and change with the supply and demand for those quality characteristics. This seventh annual report contains the results of the 1990 survey of the pricing and marketing practices of North Dakota country elevators for durum and hard red spring (HRS) wheat. The results show that the HRS wheat protein levels fell from their 1988 and 1989 highs, and that the protein premium for HRS wheat increased over the past year. Discounts have generally become less since 1988 for both HRS and durum wheat.