Figure: 4 TAC §162.3(3)(B)
| Year | Size of Flock | Number Tested |
| First | More than 2,000 | 25% of flock |
| 500 – 2,000 | 500 | |
| Less than 500 | All in flock | |
| Second | More than 2,000 | 20% of flock |
| 400 – 2,000 | 400 | |
| Less than 400 | All in flock | |
| Third | More than 2,000 | 15% of flock |
| 300 – 2,000 | 300 | |
| Less than 300 | All in flock | |
| Fourth | More than 2,000 | 10% of flock |
| 200 – 2,000 | 200 | |
| Less than 200 | All in flock | |
| Fifth | More than 2,000 | 5.0% of flock |
| 100 – 2,000 | 100 | |
| Less than 100 | All in flock |
The amount of testing in multiplier flocks will be based on origin of the flock, the present testing program, and the number of years of continuous operation without evidence of pullorum or typhoid in a hatchery supply flock or in progeny from the hatchery.