Office of Indiana State Chemist Office of Indiana State Chemist Office of Indiana State Chemist Office of Indiana State Chemist
175 S. University St., W. Lafayette, IN 47907 (765) 494-1492
  • OISC
    • About OISC
    • Directory
    • Complaints
    • Inspections
    • Public Meetings
    • Online Services
    • Laws and Regulations
  • Feed
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Licensing & Registration
    • Pet Food
    • Raw Products
    • Crop Survey & Guidelines
    • News & Updates
  • Fertilizer
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Investigations
    • Applicator Information
    • Licensing & Permits
    • Resources
    • Fertilizer Advisory Board
    • News & Updates
  • Hemp
    • Program Information
    • Laws & Regulations
    • Growers/Handlers
    • Seed Producers
    • Frequently Asked Questions
    • Annual Reports
    • Additional Resources
  • Pesticide
    • Program Information
    • Laws & Regulations
    • File a Complaint
    • Pesticide Applicators
    • Licensing & Certification
    • Businesses
    • Products & Devices
    • Special Programs
    • Pesticide Review Board
    • News & Updates
  • Seed
    • Program Information
    • Laws & Regulations
    • Noxious Weeds
    • Annual Reports
    • Labeling
    • Service Testing
    • Permitting & Compliance
    • News & Updates
  • Search
    • Main Website
    • Public Sample Results
    • Products and Licenses
    • Investigation Records
Office of Indiana State Chemist Office of Indiana State Chemist
  • OISC
    • About OISC
    • Directory
    • Complaints
    • Inspections
    • Public Meetings
    • Online Services
    • Laws and Regulations
  • Feed
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Licensing & Registration
    • Pet Food
    • Raw Products
    • Crop Survey & Guidelines
    • News & Updates
  • Fertilizer
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Investigations
    • Applicator Information
    • Licensing & Permits
    • Resources
    • Fertilizer Advisory Board
    • News & Updates
  • Hemp
    • Program Information
    • Laws & Regulations
    • Growers/Handlers
    • Seed Producers
    • Frequently Asked Questions
    • Annual Reports
    • Additional Resources
  • Pesticide
    • Program Information
    • Laws & Regulations
    • File a Complaint
    • Pesticide Applicators
    • Licensing & Certification
    • Businesses
    • Products & Devices
    • Special Programs
    • Pesticide Review Board
    • News & Updates
  • Seed
    • Program Information
    • Laws & Regulations
    • Noxious Weeds
    • Annual Reports
    • Labeling
    • Service Testing
    • Permitting & Compliance
    • News & Updates
  • Search
    • Main Website
    • Public Sample Results
    • Products and Licenses
    • Investigation Records
  1. OISC
  2. Fertilizer
  3. Applicator Information

Fertilizer Applicator Information

  • Supervision of Non-Certified Fertilizer Applicators
  • Becoming a Private Applicator
  • Fertilizer Use Regulations
  • Recordkeeping Requirements
  • Agricultural Fertilizer Application Certification
  • Becoming a Certified Commercial Applicator

Mission

The Indiana State Chemist is charged with administering several agricultural laws involving animal feeds, fertilizers, pesticides and seeds. The goals of these laws are to ensure truth-in-labeling, food safety, user safety and the protection of our environment.

Reach Out

  • File a Complaint
  • Contact Us
  • (765) 494-1492
  • (765) 494-4331
  • 175 S. University Street, West Lafayette, IN 47907
  • oiscsupport@groups.purdue.edu

Online Services

  • Licensing and Product Portal (INPlants)
  • Hemp Licensing Portal
  • Investigation Records
  • Sampling Reports
© Office of Indiana State Chemist 2026
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  • OISC
    • About OISC
    • Directory
    • Complaints
    • Inspections
    • Public Meetings
    • Online Services
    • Laws and Regulations
  • Feed
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Licensing & Registration
    • Pet Food
    • Raw Products
    • Crop Survey & Guidelines
    • News & Updates
  • Fertilizer
    • Program Information
    • Laws & Regulations
    • Sampling Reports
    • Investigations
    • Applicator Information
    • Licensing & Permits
    • Resources
    • Fertilizer Advisory Board
    • News & Updates
  • Hemp
    • Program Information
    • Laws & Regulations
    • Growers/Handlers
    • Seed Producers
    • Frequently Asked Questions
    • Annual Reports
    • Additional Resources
  • Pesticide
    • Program Information
    • Laws & Regulations
    • File a Complaint
    • Pesticide Applicators
    • Licensing & Certification
    • Businesses
    • Products & Devices
    • Special Programs
    • Pesticide Review Board
    • News & Updates
  • Seed
    • Program Information
    • Laws & Regulations
    • Noxious Weeds
    • Annual Reports
    • Labeling
    • Service Testing
    • Permitting & Compliance
    • News & Updates
  • Search
    • Main Website
    • Products and Licenses
    • Public Sample Results
    • Investigation Records