House and Senate reports are the designated class of publications by which congressional committees report and make recommendations to the House or Senate as a whole. These reports concern the findings of committee hearings or the outcome of committee deliberations. They can contain:
Follows the pattern:
[Chamber abbreviation] Rep. No. [congress number - report number] (year)
H.R. Rep. No. 103-403 (1994) is the citation to the 403rd House Report published during the 103rd Congress in 1994.
S. Rep. No. 103-300 (1994): Senate Report 300 of the 103rd Congress, published in 1994.
You may see the word at plus a number between the report number and year, for example:
S. Rep. No. 103-300 at 23 (1994)
shows that the reference is to page 23 of Senate Report 103-300.