17 CFR § 249.638 - Form ATS-R, information required of alternative trading systems pursuant to § 242.301(b)(8) of this chapter.

---
identifier: "/us/cfr/t17/s249.638"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "17 CFR § 249.638 - Form ATS-R, information required of alternative trading systems pursuant to § 242.301(b)(8) of this chapter."
title_number: 17
title_name: "Commodity and Securities Exchanges"
section_number: "249.638"
section_name: "Form ATS-R, information required of alternative trading systems pursuant to § 242.301(b)(8) of this chapter."
chapter_name: "SECURITIES AND EXCHANGE COMMISSION"
part_number: "249"
part_name: "FORMS, SECURITIES EXCHANGE ACT OF 1934"
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. 78a  and 7201  12 U.S.C. 5461  18 U.S.C. 1350; Sec. 953(b) Pub. L. 111-203, 124 Stat. 1904; Sec. 102(a)(3) Pub. L. 112-106, 126 Stat. 309 (2012), Sec. 107 Pub. L. 112-106, 126 Stat. 313 (2012), Sec. 72001 Pub. L. 114-94, 129 Stat. 1312 (2015), and secs. 2 and 3 Pub. L. 116-222, 134 Stat. 1063 (2020), unless otherwise noted."
cfr_part: "249"
---


# 249.638 Form ATS-R, information required of alternative trading systems pursuant to § 242.301(b)(8) of this chapter.

This form shall be used by every alternative trading system to file required reports under § 242.301(b)(8) of this chapter.

[63 FR 70943, Dec. 22, 1998]

For  citations affecting Form ATS-R, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at