---
kind: "section"
citation: "31 C.F.R. § 203.18"
title: "31"
number: "203.18"
heading: "Scope of the subpart."
url: "https://uscodex.org/cfr/31/203.18"
---

# §203.18. Scope of the subpart.


This subpart governs the operation of the investment program, including the rules that TT&L depositaries must follow in crediting and debiting TIP main account balances, SDI account balances, and TIO account balances, and pledging collateral security.


## Notes

### Authority

Authority: 12 U.S.C. 90,265-266, 332, 391, 1452(d), 1464(k), 1767, 1789a, 2013, 2122, and 3102; 26 U.S.C. 6302; 31 U.S.C. 321, 323, and 3301-3304.

### Source

Source: 72 FR 59181, Oct. 19, 2007, unless otherwise noted.