What a registration statement contains, and why the contents are the point. Section 7 requires the statement to "contain the information, and be accompanied by the documents, specified in Schedule A", the schedule Congress wrote into the statute itself, with a separate schedule for foreign governments. The SEC's summary of what the forms call for is shorter: a description of the company's properties and business, a description of the security being offered, information about management, and financial statements certified by independent accountants. Registration statements and prospectuses "become public shortly after filing" and, for domestic companies, are on the EDGAR database. Section 7 also requires the written consent of any accountant, engineer, appraiser or similar professional who is named as having prepared or certified any part of the statement, which is the hook that later makes those professionals answerable for what they certified.
Registration is examined for disclosure compliance, not for merit. The SEC states the division plainly: the filings are "subject to examination for compliance with disclosure requirements", and the resulting information "enables investors, not the government, to make informed judgments about whether to purchase a company's securities. While the SEC requires that the information provided be accurate, it does not guarantee it." Nothing in the process is a view about whether the investment is any good. A page, a salesperson or an advertisement that treats an effective registration as a federal endorsement has the statute backwards.
Sections 11 and 12 are the enforcement engine, and they are unusually friendly to the buyer. Section 11 applies where any part of the registration statement, when it became effective, "contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading". Any person who acquired the security may sue, unless it is proved they knew of the problem when they bought, and the statute names the defendants: everyone who signed the statement, the issuer's directors and partners at the time of filing, people named with their consent as about-to-become directors, named experts such as accountants, engineers and appraisers as to the parts they certified, and every underwriter of the security. Section 12 reaches the sale itself. Under section 12(a)(1) a person who offers or sells a security in violation of the registration requirement is liable to the buyer; under section 12(a)(2) so is a person who sells by means of a prospectus or oral communication containing a material untruth or omission, unless that seller sustains "the burden of proof that he did not know, and in the exercise of reasonable care could not have known" of it. The remedy in both cases is rescission: the buyer tenders the security back and recovers "the consideration paid for such security with interest thereon, less the amount of any income received thereon", or sues for damages if the security is gone. Section 12(b) then lets a defendant reduce that recovery by proving that some or all of the loss came from something other than the misstatement.
The architecture is two words wide: register or exempt. The requirement that an offer or sale be registered lives in section 5, and the consequences of an offering that is neither registered nor exempt are a separate subject. What belongs here is the shape. The SEC's own list of exemption categories runs to "private offerings to a limited number of persons or institutions; offerings of limited size; intrastate offerings; and securities of municipal, state, and federal governments", each of which is a body of rules in its own right. Most capital raised in the United States is raised under one of them rather than through a registered public offering, so for a reader evaluating a specific deal the useful question is rarely "is it registered?" but "if it is not, which exemption is it relying on?".
Where the Act stops. It reaches the offer and the sale. Once a security is outstanding and trading between investors, the statute doing the work is the Securities Exchange Act of 1934: exchange and broker-dealer regulation, the issuer's continuing reports, and the general antifraud provision that reaches any purchase or sale. The 1933 Act keeps one lever over the states, section 18, which strips them of the power to require registration or apply merit review to a defined set of covered securities while preserving their antifraud authority. That provision is the whole subject of the state securities laws usually called blue sky laws.