| page | No | 1-based result page. Default 1. | |
| index | No | Systematik classification filter (e.g. "10/10 Datenschutz"). Federal/state consolidated law only. | |
| query | No | Full-text search (Suchworte). Boolean operators UND/ODER/NICHT or AND/OR/NOT, parentheses, quoted phrases; wildcard * is trailing-only ("Datenschutz*", never "*schutz"). Syntax: ris_list_reference topic search_syntax. | |
| scope | No | Jurisdiction: federal (default) searches consolidated federal law; a Bundesland searches that state’s consolidated law (or, with municipality set, its municipal law). | federal |
| title | No | Title search (Titel) — matches title, short title, and official abbreviation ("ABGB", "DSG"). Phrase field: * allowed leading or trailing with ≥2 characters beside it. | |
| law_id | No | Law-level grouping key (Gesetzesnummer, e.g. 10001597 = DSG) — exact match; returns every section of that law. Federal/state consolidated law only. | |
| sort_by | No | Sort column: section (§/Artikel/Anlage label) or in_force_date. Default: upstream order. Federal/state consolidated law only. | |
| language | No | german (default) searches the authoritative German corpus; english searches the ~138 unofficial English translations of selected federal laws (requires scope: federal; combines only with query and title). | german |
| page_size | No | Documents per page — RIS accepts 10, 20, 50, or 100. Default 20. | |
| section_to | No | End of the section range. Equal to section_from for a single section. | |
| municipality | No | Municipality name for municipal law (e.g. "Graz" — RIS’s spelling, not "Stadt Graz"). Requires a state scope; combines only with query, title, and in_force_as_of. Coverage is selected norms in 6 Bundesländer (no Burgenland/Tirol/Vorarlberg). | |
| section_from | No | Start of a § / Artikel / Anlage number range, digits with optional letter ("6", "1a"). Federal/state consolidated law only. | |
| section_type | No | Which section kind the range addresses. Defaults to Paragraph when a section range is set. Values: ris_list_reference topic section_types. | |
| changed_since | No | Coarse recency filter — documents changed in RIS within the interval. For exact windows and deletions use ris_track_changes. | |
| left_force_to | No | Provisions that left force on/before this date (YYYY-MM-DD). | |
| in_force_as_of | No | Return only the version in force on this date (YYYY-MM-DD). DEFAULTS TO TODAY in Austria — omitting it never searches all historical versions; opt into that with include_all_versions. | |
| sort_direction | No | Sort direction; applies with sort_by. | |
| left_force_from | No | Provisions that left force on/after this date (YYYY-MM-DD) — repeal tracking. Same exclusivity as entered_force_from. | |
| entered_force_to | No | Provisions that entered force on/before this date (YYYY-MM-DD). | |
| entered_force_from | No | Provisions that entered force on/after this date (YYYY-MM-DD) — new-law tracking. Federal/state consolidated law only; mutually exclusive with in_force_as_of and include_all_versions. | |
| include_all_versions | No | true searches every historical version (no in-force date filter) — version-history research. Overrides in_force_as_of; mutually exclusive with the force-window filters. | |