{"id":"864d9d77-47ef-4986-92e1-94e72147ce1d","task":"Obtain Maryland's Professional Fertilizer Applicator certification under the state Fertilizer Use Act","domain":"mda.maryland.gov","steps":["Register with the Maryland Department of Agriculture at least 1 month before a scheduled exam date.","Study the Professional Lawn Care Manual (soils/fertility, soil testing, label interpretation, equipment calibration, UMD fertilizer recommendations).","Pass the written certification exam given by MDA (offered at least annually) and pay the $100 certification fee.","Renew annually (certificate runs Jan 1–Dec 31 of issuance) by completing 2 hours of MDA-approved continuing education, or by reexamination ($10 fee).","Apply MDA turfgrass fertilizer application rate/timing rules on every job, since the underlying 2011 law restricts nitrogen/phosphorus application specifically to protect the Chesapeake Bay watershed."],"gotchas":["The certificate year runs calendar-year (Jan–Dec) regardless of when during the year it was issued — a certificate obtained in October still expires that December 31, so first-year applicants get a short initial term.","This is a fertilizer-specific certification separate from any Maryland pesticide applicator license — commercial lawn programs applying both fertilizer and pesticide typically need both credentials."],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/864d9d77-47ef-4986-92e1-94e72147ce1d"}