{"id":"ETH-004","name":"Disclose material conditions","domain":"ethics","layer":"section","strength":"hard_constraint","human_logic":"IF price, outcome, eligibility, risk, timing, endorsement, or availability depends on a material condition, THEN disclose it clearly and near the claim ELSE retain.","when":{"path":"claim.material_condition.exists","operator":"eq","value":true},"then":[{"action":"insert","target":"claim.material_condition","position":"clear_and_proximate","presentation":"noticeable_and_understandable"}],"else":[{"action":"retain","target":"current_text","reason":"No triggering condition is present."}],"unless":[],"because":"A hidden condition can reverse the practical meaning of an offer.","diagnostics":[],"examples":{},"source_ids":["WEB-012","WEB-013"],"laka":{"smallest_sufficient_intervention":true,"primary_axes":["scope","depth","magnitude","reversibility"]},"requires_facts":["claim.material_condition.exists"],"tests":[{"id":"TST-022","rule_id":"ETH-004","before":"Plans start at $10.","after":"Plans start at $10 per month for one user; taxes are extra.","reason":"Material price conditions appear with the price.","assertion":{"if":{"path":"output","operator":"eq","value":"Plans start at $10 per month for one user; taxes are extra."},"then":"pass","else":"review"}}],"sources":[{"id":"WEB-012","title":"Advertising and Marketing Basics","creator":"U.S. Federal Trade Commission","domain":"advertising_compliance","type":"Regulatory guidance","note":"Advertising claims must be truthful, non-deceptive, fair, and appropriately substantiated.","url":"https://www.ftc.gov/business-guidance/advertising-marketing"},{"id":"WEB-013","title":"Advertising Substantiation Policy Statement","creator":"U.S. Federal Trade Commission","domain":"claim_substantiation","type":"Regulatory policy","note":"Objective claims require a reasonable evidentiary basis before dissemination.","url":"https://www.ftc.gov/legal-library/browse/ftc-policy-statement-regarding-advertising-substantiation"}],"defined_in":{"file":"18-ethics-and-claims-rules.json","title":"Ethics, Truth, and Claim-Safety Rules","slug":"ethics-and-claims-rules"}}