What Is Materials Management?

Materials management is the people, systems, and processes that plan, source, store, move, and control physical materials — from the moment they enter an organization’s control to their final use or disposal. It’s the same discipline whether the materials in question are steel entering a factory, spare parts sitting in a maintenance store, or bulk cargo staged on a berth. At a port or marine terminal, that discipline takes on a specific shape: bulk commodities staged between vessel and rail car or truck, break-bulk and project cargo tracked through a transit shed, and the spare parts, fuel, and equipment inventory that keep cranes and yard trucks running — all materials management problems before they’re anything else.

The field has gone by a few different names over the decades — production and inventory control, physical distribution, materials handling — before most of it settled under the wider umbrella of supply chain management. The Council of Supply Chain Management Professionals (CSCMP), the field’s main professional body, treats materials management as the physical, operational core of that broader discipline: the actual plan, order, store, and move functions, as distinct from the network design and customer-facing planning layered on top.

That distinction matters for port and terminal operations specifically. Most searches for “materials management” are solving an operational problem — how to plan, stage, or control physical materials — and a large share of those problems live at the intermodal handoff between ship, rail, and truck. The rest of this guide covers what the job involves day to day, how it differs from adjacent titles, and where it shows up inside port and terminal operations specifically.

In practice, one person or one department is usually responsible for a handful of connected functions, whatever title sits on the org chart:

The U.S. Department of Labor doesn’t track “materials manager” as its own occupational code. The closest match is Logisticians, which O*NET defines as the people who analyze and coordinate an organization’s logistical functions across the entire life cycle of a product — acquisition, distribution, internal allocation, delivery, and disposal — nearly the same verb list as the materials management definition above. Logisticians earned a median $82,320 a year ($39.58 an hour) as of the most recent O*NET data, with roughly 241,000 people working the occupation nationally and about 26,400 projected job openings a year through 2034. A bachelor’s degree is the typical entry point into the field, per the Bureau of Labor Statistics.

Port and terminal operations are, underneath the vessel schedules and crane counts, a materials management problem at scale. Bulk commodities — grain, coal, aggregate, ore — get staged in a yard or silo between the vessel and the rail car or truck that carries them onward, and someone has to plan that staging so the berth doesn’t back up. Break-bulk and project cargo move through a transit shed on a similar logic: received, tracked, staged, and released against a schedule, rather than simply craned off a ship and forgotten — the kind of detail port trade press, including Marine Log, covers closely, because it’s often the real constraint on how fast a berth turns a vessel.

That staging and inventory function sits between two disciplines it’s often confused with. Marine transportation covers the vessels, carriers, and shipping lines that bring cargo to the berth in the first place. Stevedoring covers the physical loading and unloading of the vessel itself. Materials management is what happens to the cargo — and to the spare parts, fuel, and equipment inventory that keep the terminal’s own cranes and yard trucks running — before and after that handoff. A terminal that gets the vessel side right and the materials side wrong still ends up with a yard it can’t move.

Smaller operations still run materials management on spreadsheets and physical counts, and for a low volume of slow-moving inventory, that’s not necessarily wrong. Past a certain scale, most materials managers work across two or three connected systems instead: an ERP or MRP module for demand planning and procurement, and a warehouse management system (WMS) for inventory, location tracking, and staging.

At a port or terminal specifically, there’s a third system in the mix: the terminal operating system (TOS) that tracks container and vessel moves. TOS platforms are built for cargo throughput, not inventory accuracy, so a terminal running significant bulk, break-bulk, or MRO inventory often ends up bridging its TOS to a separate WMS or ERP rather than relying on one system for both. The Material Handling Institute (MHI), the trade association for the equipment and systems side of the industry, is a useful reference point for how that handling and tracking technology keeps evolving.

Materials management has its own certification track, separate from the port-specific credentials CPE covers elsewhere on this site. ASCM — the Association for Supply Chain Management, formerly APICS — grew out of the American Production and Inventory Control Society, and its Certified Supply Chain Professional (CSCP) credential covers demand planning, procurement, and inventory control directly. On the sourcing side, ISM offers a parallel credential focused on procurement; CSCMP’s own credentialing sits closer to the strategic supply chain layer.

None of these are maritime-specific, and that’s the point: they’re worth holding alongside a port-specific credential rather than instead of one. See how CSCP, CPSM, and other supply-chain credentials compare to CPE and to maritime-specific certifications like MTSA compliance and harbour master licensing.