What a quarterly report actually contains
Each filing names the client, the issues, the chambers contacted and an income band — and the bands are wide enough to matter.

The form behind the filing
Every registered lobbyist in Washington submits a disclosure report four times a year. The form is standardized and publicly searchable, but its contents are worth reading carefully — because the structure of what it does and does not require shapes what the public actually learns.
The legal basis is the Lobbying Disclosure Act of 1995 ↗, which established the registration and reporting regime. Each report covers a calendar quarter and must be submitted to both the Clerk of the House and the Secretary of the Senate within twenty days of the quarter's close. The 2007 Honest Leadership and Open Government Act tightened that further, requiring semi-annual reports on certain campaign contributions, but the quarterly lobbying report remained the core document.

What the form contains — and how wide the bands are
A completed quarterly report identifies four things: the registrant (the lobbying firm or in-house operation), the client paying for the work, the specific issue areas contacted, and the income or expenditure figure for the period.
The client identification is straightforward. A firm lists each client separately, and a corporation with in-house lobbyists files on its own behalf. Issue areas are listed using a set of general codes — "Health Issues," "Tax," "Defense," "Energy" — sometimes with a brief narrative attached. Chambers and agencies contacted are noted: House, Senate, executive branch offices, and specific federal departments where relevant. A filing that lists the Department of Energy, the Senate Finance Committee, and the House Armed Services Committee tells a researcher considerably more than one that lists only "Congress."
The income figure is where the form's limits become structurally significant. Firms and in-house operations do not report a precise dollar amount. Instead, they report within a band. Income below $5,000 in a quarter is reported as less than $5,000; above that threshold, amounts are rounded to the nearest $10,000. A lobbying firm that billed a client $1.4 million in a quarter reports "$1,400,000." A firm that billed $60,000 reports "$60,000" — but one that billed $61,000 also reports "$60,000," and one that billed $79,000 reports "$80,000." The rounding is not trivial; it means that aggregate spending figures compiled by OpenSecrets ↗ from LDA filings carry an inherent imprecision that researchers routinely note.
For in-house operations — a corporation or trade association with salaried lobbyists on staff — the filing reports total lobbying expenditures rather than income paid to outside counsel. Those figures include salary allocations and are also rounded to the nearest $10,000.

The gaps the form leaves
A quarterly report covers only federally registered lobbying contacts. It does not capture grassroots campaigning — organized efforts to mobilize constituents toward a legislative position — because that activity falls outside the federal statutory definition of lobbying. Strategic advice, coalition building, and research that never produces a direct contact with a covered official are also outside the form's scope.
The issue-area codes are broad by design. "Health Issues" covers prescription drug pricing, hospital reimbursement rates, vaccine policy, and dozens of other distinct matters. A researcher using the public database can see that a pharmaceutical company spent heavily on health issues in a given quarter but may need additional reporting or internal documents to know precisely which provision in which bill was the subject of contact.
The filings are nonetheless a genuine public record. Taken in aggregate across thousands of registrants and years, they show the relative scale of organized representation before Congress and the executive branch with a granularity that no pre-1995 observer could have accessed. The Government Accountability Office has audited LDA compliance ↗ and found persistent gaps in registration, particularly among those who argue their activity falls below the income and time thresholds. That boundary — where registration begins and ends — is where disclosure gains or loses its reach.