{
    "code": "4491",
    "title": "Marine Cargo Handling",
    "sic_manual": "OSHA SIC Manual",
    "level": "Industry",
    "major_group_code": "44",
    "parent_code": "449",
    "parent_title": "Services Incidental to Water Transportation",
    "plain_english_definition": "",
    "summary_plain": "",
    "official_definition": "Establishments primarily engaged in activities directly related to marine cargo handling from the time cargo, for or from a vessel, arrives at shipside, dock, pier, terminal, staging area, or in-transit area until cargo loading or unloading operations are completed. Included in this industry are establishments primarily engaged in the transfer of cargo between ships and barges, trucks, trains, pipelines, and wharfs. Cargo handling operations carried on by transportation companies and separately reported are classified here. This industry includes the operation and maintenance of piers, docks, and associated buildings and facilities.",
    "official_source": "https://www.osha.gov/sic-manual/4491",
    "classification_note": "",
    "included_activities": [
        "Docks, including buildings and facilities: operation and maintenance",
        "Loading vessels",
        "Marine cargo handling",
        "Piers, including buildings and facilities: operation and maintenance",
        "Ship hold cleaning"
    ],
    "excluded_activities": [
        {
            "label": "Operators of Nonresidential Buildings",
            "code": "6512",
            "title": "Operators of Nonresidential Buildings",
            "url": "https://siccode.com/sic-code/6512/operators-nonresidential-buildings"
        }
    ],
    "confused_codes": [],
    "official_siblings": [
        {
            "code": "4491",
            "title": "Marine Cargo Handling",
            "url": "https://siccode.com/sic-code/4491/marine-cargo-handling",
            "label": "Industry"
        },
        {
            "code": "4492",
            "title": "Towing and Tugboat Services",
            "url": "https://siccode.com/sic-code/4492/towing-tugboat-services",
            "label": "Industry"
        },
        {
            "code": "4493",
            "title": "Marinas",
            "url": "https://siccode.com/sic-code/4493/marinas",
            "label": "Industry"
        },
        {
            "code": "4499",
            "title": "Water Transportation Services, Not Elsewhere Classified",
            "url": "https://siccode.com/sic-code/4499/water-transportation-services",
            "label": "Industry"
        }
    ],
    "official_children": [],
    "related_naics_codes": [
        {
            "code": "488310",
            "title": "Port and Harbor Operations",
            "url": "https://siccode.com/naics-code/488310/port-harbor-operations"
        },
        {
            "code": "488320",
            "title": "Marine Cargo Handling",
            "url": "https://siccode.com/naics-code/488320/marine-cargo-handling"
        }
    ],
    "example_companies": [
        {
            "name": "International Shipholding Corp",
            "url": "https://siccode.com/business/international-shipholding-corp",
            "city": "Mobile",
            "state": "AL",
            "reviewed": false
        },
        {
            "name": "K Line America Inc",
            "url": "https://siccode.com/business/k-line-america-inc",
            "city": "Richmond",
            "state": "VA",
            "reviewed": false
        },
        {
            "name": "Carrix Inc",
            "url": "https://siccode.com/business/carrix-inc",
            "city": "Seattle",
            "state": "WA",
            "reviewed": false
        },
        {
            "name": "Gulf And Atlantic Services",
            "url": "https://siccode.com/business/gulf-and-atlantic-services",
            "city": "Georgetown",
            "state": "SC",
            "reviewed": false
        },
        {
            "name": "Parker Towing Company Inc",
            "url": "https://siccode.com/business/parker-towing-company-inc",
            "city": "Northport",
            "state": "AL",
            "reviewed": false
        },
        {
            "name": "JBG Corp",
            "url": "https://siccode.com/business/jbg-corp",
            "city": "Honolulu",
            "state": "HI",
            "reviewed": false
        },
        {
            "name": "Ports America Chesapeake, LLC",
            "url": "https://siccode.com/business/ports-america-chesapeake-llc",
            "city": "Baltimore",
            "state": "MD",
            "reviewed": false
        },
        {
            "name": "Crounse Corp",
            "url": "https://siccode.com/business/crounse-corp-2",
            "city": "Maysville",
            "state": "KY",
            "reviewed": false
        },
        {
            "name": "Canaveral Port Authority",
            "url": "https://siccode.com/business/canaveral-port-authority",
            "city": "Cape Canaveral",
            "state": "FL",
            "reviewed": false
        },
        {
            "name": "P T I",
            "url": "https://siccode.com/business/p-t-i",
            "city": "Detroit",
            "state": "MI",
            "reviewed": false
        },
        {
            "name": "Penn Terminals Inc",
            "url": "https://siccode.com/business/penn-terminals-inc",
            "city": "Crum Lynne",
            "state": "PA",
            "reviewed": false
        }
    ],
    "company_count": 404,
    "email_contact_count": 138,
    "phone_count": 248,
    "website_count": 396,
    "database_as_of": "Nov 13, 2026",
    "count_type": "commercial",
    "count_disclaimer": "These are SICCODE.com commercial database counts, not official government establishment totals. Website-Reviewed & Enriched is a separate review of company websites for products, services, markets, and fit.",
    "canonical_url": "https://siccode.com/sic-code/4491/marine-cargo-handling",
    "json_url": "https://siccode.com/sic-code/4491.json",
    "reviewed_by": "Industry Classification Review Team",
    "last_updated": "October 2026"
}