Glossary
Last updated: 2026-05-18.
Plain-language definitions of acronyms and terms used across this KB.
A
- Accredited Investor — Person/entity meeting income, net-worth, or sophistication tests under Rule 501. Eligible for Reg D 506 offerings.
- AML — Anti-Money Laundering. U.S. regime under the Bank Secrecy Act, enforced by FinCEN.
- Anti-fraud rules — Section 17 of the '33 Act, Section 10(b) + Rule 10b-5 of the '34 Act. Apply to misstatements in connection with sale of any security or investment contract.
- ART — Asset-Referenced Token. MiCA category for stablecoins backed by multiple currencies/assets.
- ATS — Alternative Trading System. SEC-registered non-exchange trading venue. Operated by a broker-dealer under Regulation ATS.
B
- BD / Broker-Dealer — Entity registered with SEC and FINRA to engage in securities transactions.
- BitLicense — New York's virtual currency business activity license under 23 NYCRR 200.
- Blue-sky law — State-level securities registration laws.
C
- CASP — Crypto-Asset Service Provider. MiCA-authorized firm providing crypto-asset services in the EU.
- CFTC — Commodity Futures Trading Commission. Regulates derivatives and (per Project Crypto) commodities, including digital commodities.
- CLARITY Act — Digital Asset Market Clarity Act of 2025. Pending market-structure legislation. (14)
- Common enterprise — Howey prong. Horizontal (pooling) or vertical (investor-promoter alignment) commonality.
- Corp Fin — SEC Division of Corporation Finance. Issues many of the 2025 crypto staff statements.
- Covered Stablecoin — Stablecoin meeting the April 2025 Corp Fin five-factor test. (06)
D
- DAO — Decentralized Autonomous Organization. Smart-contract-governed entity. May or may not have legal wrapper.
- DePIN — Decentralized Physical Infrastructure Network.
- DFAL — California Digital Financial Assets Law (effective July 1, 2026).
- DFPI — California Department of Financial Protection and Innovation.
- Digital Commodity — Project Crypto Bucket 1. Token whose value comes from a functional, decentralized network.
- Digital Collectible — Project Crypto Bucket 2. Cultural / use-value NFT or token.
- Digital Tool — Project Crypto Bucket 3. Practical-function token (membership, ticket, credential).
- Digital Security / Tokenized Security — Project Crypto Bucket 4. On-chain representation of a §2(a)(1) security.
- DTSP — Singapore Digital Token Service Provider (FSMA 2022).
E
- EMT — E-Money Token. MiCA category for single-fiat stablecoins.
- Exchange Act — Securities Exchange Act of 1934. Governs secondary trading, exchanges, broker-dealers, transfer agents.
F
- FCA — UK Financial Conduct Authority.
- FinCEN — Financial Crimes Enforcement Network (Treasury). MSB registration + BSA enforcement.
- FinHub — SEC's Strategic Hub for Innovation and Financial Technology. Issues digital-asset no-action letters.
- FIT21 — Financial Innovation and Technology for the 21st Century Act. Passed House 2024; predecessor to CLARITY.
- Form 1-A — Reg A+ qualification filing.
- Form ATS — Initial filing to operate an alternative trading system.
- Form C — Reg CF crowdfunding offering filing.
- Form D — Reg D notice filing (15 days post first sale).
- Form S-1 — Standard registration statement for an IPO or registered offering.
G
- GENIUS Act — Guiding and Establishing National Innovations for U.S. Stablecoins Act. Signed 2025-07-18. (14)
- General solicitation — Public marketing of a securities offering. Allowed in Reg D 506(c), Reg A+, Reg CF; prohibited in Reg D 506(b).
H
- Howey test — Investment contract test from SEC v. W.J. Howey Co., 328 U.S. 293 (1946). The foundational analysis. (10)
I
- Investment contract — A scheme involving investment of money in a common enterprise with reasonable expectation of profits from others' efforts. The flexible §2(a)(1) catch-all that captures most token sales.
- Investment Company Act ('40 Act) — Governs pooled investment vehicles. Separate analysis from Howey; if you pool assets, you may trip the '40 Act regardless of token classification.
M
- MAS — Monetary Authority of Singapore.
- MiCA — Markets in Crypto-Assets Regulation (EU). Regulation 2023/1114.
- MSB — Money Services Business. FinCEN registration category covering money transmitters and certain crypto activity.
- MTL — Money Transmitter License (state-level).
N
- No-action letter — Staff response that it will not recommend enforcement against the requesting party on the specified facts. Binding on staff, not on Commission, not on courts.
- Note — Debt instrument. Reves family-resemblance test, not Howey, applies.
P
- PoW / PoS — Proof-of-Work / Proof-of-Stake. Consensus mechanisms.
- PPSI — Permitted Payment Stablecoin Issuer (GENIUS Act).
- Programmatic sales — Anonymous on-exchange sales (Ripple ruling). Generally not investment contracts on their own.
- Project Crypto — SEC's Atkins-era initiative to clarify and modernize crypto-asset regulation. Launched July 2025.
Q
- QIB — Qualified Institutional Buyer (Rule 144A). Institutions with $100M+ in securities.
- Qualifying cryptoasset — UK FCA category triggering the new regulated activities (in force October 2027).
R
- Reg A+ — Regulation A. Mini-IPO exemption up to $20M (Tier 1) or $75M (Tier 2). (12)
- Reg ATS — Regulation ATS. Rules governing alternative trading systems.
- Reg CF — Regulation Crowdfunding. Up to $5M in 12 months via funding portal.
- Reg D — Regulation D private-placement exemptions. Rules 504, 506(b), 506(c).
- Reg S — Regulation S. Safe harbor for offshore offerings to non-U.S. persons.
- Reves test — Family-resemblance test for whether a note is a security. Reves v. Ernst & Young, 494 U.S. 56 (1990).
- RWA — Real-World Asset. Often used for tokenized off-chain assets (treasuries, real estate, commodities).
S
- SAB 121 — Staff Accounting Bulletin 121 (2022). Required gross-up of custodied crypto. Rescinded by SAB 122 (2025-01-23).
- SAB 122 — Successor to SAB 121. Contingency-accounting approach.
- Safe harbor — A defined set of conditions; meeting them assures non-enforcement.
- SAFT — Simple Agreement for Future Tokens. Common 2017–2019 structure; survived as a Reg D security wrapping a pre-launch token. See Telegram / Kik cases.
- SCA — UAE Securities and Commodities Authority.
- SPDI — Special Purpose Depository Institution (Wyoming). State-chartered, full-reserve digital-asset bank.
- Sufficient decentralization — Hinman doctrine: a network is sufficiently decentralized when purchasers no longer reasonably expect a person/group to carry out essential managerial or entrepreneurial efforts. Now operationalized via Project Crypto Bucket 1.
T
- Token Safe Harbor 2.0 — Commissioner Peirce's 2021 proposal for a three-year exemption for early-stage network development. Not adopted; conceptual ancestor of Atkins's 2026 startup exemption.
- Tokenized Security — On-chain representation of a §2(a)(1) security. Project Crypto Bucket 4. (05)
- Transfer agent — Person/entity registered under §17A(c) to maintain securities ownership records. Required for tokenized securities.
V
- VARA — Virtual Assets Regulatory Authority (Dubai).
- VASP — Virtual Asset Service Provider (FATF / international term).
§-citation primer
- §2(a)(1) of the Securities Act of 1933 — Definition of "security." Includes "investment contract" as a catch-all.
- §3(a)(10) of the Securities Exchange Act of 1934 — Parallel definition of "security."
- §5 of the Securities Act — Registration requirement for any "offer or sale" of a security.
- §15(a) of the Exchange Act — Broker-dealer registration.
- §6 of the Exchange Act — National securities exchange registration.
- §17A(c) of the Exchange Act — Transfer agent registration.
- Rule 10b-5 — General anti-fraud.
- Rule 144 — Resale of restricted/control securities.
- Rule 15c3-3 — Broker-dealer Customer Protection Rule.
- Rules 17a-3 / 17a-4 — Broker-dealer recordkeeping.
