17 CFR § 248.128 - Effective date, compliance date, and prospective application.

---
identifier: "/us/cfr/t17/s248.128"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "17 CFR § 248.128 - Effective date, compliance date, and prospective application."
title_number: 17
title_name: "Commodity and Securities Exchanges"
section_number: "248.128"
section_name: "Effective date, compliance date, and prospective application."
chapter_name: "SECURITIES AND EXCHANGE COMMISSION"
part_number: "248"
part_name: "REGULATIONS S-P, S-AM, AND S-ID"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 78q, 78q-1, 784, 785, 78w, 78mm, 80a-30, 80a-37, 80b-4, 80b-11, 1681m(e), 1681s(b), 1681s-3 and note, 1681w(a)(1), 6801-6809, and 6825; Pub. L. 111-203, secs. 1088(a)(8), (a)(10), and sec. 1088(b), 124 Stat. 1376 (2010)."
regulatory_source: "65 FR 40362, June 29, 2000, unless otherwise noted."
cfr_part: "248"
---


# 248.128 Effective date, compliance date, and prospective application.

(a) *Effective date.* This subpart is effective September 10, 2009.

(b) *Mandatory compliance date.* Compliance with this subpart is required not later than January 1, 2010.

(c) *Prospective application.* The provisions of this subpart do not prohibit you from using eligibility information that you receive from an affiliate to make a marketing solicitation to a consumer if you receive such information prior to January 1, 2010. For purposes of this section, you are deemed to receive eligibility information when such information is placed into a common database and is accessible by you.