---
kind: "section"
citation: "25 C.F.R. § 39.710"
title: "25"
number: "39.710"
heading: "How does a school calculate annual bus transportation miles for day students?"
url: "https://uscodex.org/cfr/25/39.710"
---

# §39.710. How does a school calculate annual bus transportation miles for day students?


To calculate the total annual bus transportation miles for day students, a school must use the appropriate formula from this section. In the formulas, Tu = Miles driven on Tuesday of the transportation mileage count week, W = Miles driven on Wednesday of the transportation mileage count week, and Th = Miles driven on Thursday of the transportation mileage count week.

- (a) For ISEP-eligible day students whose route is entirely over improved roads, calculate miles using the following formula:
- (b) For ISEP-eligible day students whose route is partly over unimproved roads, calculate miles using the following three steps.
  - (1) **Step 1.** Apply the following formula to miles driven over improved roads only:
  - (2) **Step 2.** Apply the following formula to miles driven over unimproved roads only:
  - (3) **Step 3.** Add together the sums from steps 1 and 2 to obtain the total annual transportation miles.

## Notes

### Source

Source: 70 FR 22205, Apr. 28, 2005, unless otherwise noted.

### Authority

Authority: 25 U.S.C. 13, 2008; Public Law 107-110, 115 Stat. 1425.

### Source

Source: 44 FR 61864, Oct. 26, 1979, unless otherwise noted. Redesignated at 47 FR 13327, Mar. 30, 1982.