tion, including the identification of diseases that 
affect the commodity. Frequent refresher train- 
ing schools are held in all areas and the work 
is closely supervised and coordinated. To further 
assure that the grade standards mean the same 
thing in all parts.of the country, the Inspection 
Service provides its inspectors with visual 
aids, such as realistic hand-painted models, 
color comparators, photographs, sketches, and 
color slides to guide the inspector in rating 
quality factors. 
OD) Plaster models to aid inspectors are cast from 
the real thing. 
| Inspection Fees | 
A fee is charged for services rendered. The 
fee is established at rates that will cover, as 
nearly as possible, the cost of performing the 
service. 
Fee rates for terminal market inspections are 
outlined in Department regulations governing 
the inspection and certification of fresh fruits, 
vegetables and other products. For special 
contract inspection service, the fee is as speci- 
fied in the contract. 
For Federal-State inspection service at ship- 
ping points, reasonable fee rates to cover costs of 
inspection are established by the cooperating 
State agency. 
Free to Choose 
Both the U.S, grade standards and the inspec- 
1] 
