Varieties:
Chandler, Hartley, Howard, Tulare, Waterloo, Payne and Vina.

In-shell walnuts:

Grades:
U.S. No. 1, U.S. No. 2 and U.S. No. 3.

Sizes:
Jumbo: 32 mm and over.
Large: 30 – 32 mm.
Medium: 28 – 30 mm.
Baby: 26 – 28 mm.

Walnuts halves:

Grades:
U.S. No. 1 and U.S. Commercial.

Grading colour:
Extra light, light, light amber, amber and red.

Walnuts pieces:

Pieces and halves – 20% or more are halve kernels.
Pieces – Kernels will not pass through 24/64 inch (9.53 mm) round opening.
Small pieces – Kernels will not pass through 8/64 inch (3.18 mm) round opening.

Varieties:
Chandler and Serr.

In-shell walnuts

Sizes:
Under 28, 28 – 30, 30 – 32, 32 – 34, 34 – 36, 36+ mm and unsized.

Walnut halves

Colour grades:
Extra light, light, light amber and amber.

In-shell walnuts

Sizes:
26+ mm, 28+ mm, 30+ mm and 32+ mm.

Walnut halves

Grading colours:
Extra light, light, light-amber and amber.

Walnut pieces

Sizes and grading:
1/4 pieces, grading colours extra light, light and light-amber.
1/8 pieces, 8 – 12 mm.
1/16 pieces, 4 – 8 mm.

Varieties:
Fernor and Lara.

In-shell walnuts

Sizes per variety:
Lara: 36 – 38 mm.
Fernor: 32 – 24 mm.

Grade:
Premium.