Design Schedule and Long-Lead Procurement

1. Why This Topic Matters

On the CCM exam, the Time Management domain tests whether you understand that schedule control begins long before a contractor mobilizes. Two of the most common causes of late projects are (a) design that is not finished when it is needed and (b) critical equipment or materials that arrive after the activity that needs them was supposed to start. A Construction Manager (CM) who treats the schedule as a construction-only tool misses the point: the CMAA Time Management Standards of Practice expect the CM to plan, monitor and control design-phase durations and to identify and expedite long-lead items early enough that they never drive the critical path.

From the Owner's perspective, the design schedule and procurement strategy directly affect the Master Schedule (the overall project timeline from pre-design through occupancy), the Milestone Schedule (key dates such as design completion, bid, award, Notice to Proceed, substantial completion), and the project budget (late delivery usually equals acceleration costs, claims, or lost revenue). This is why exam questions in this area frequently ask what the CM should do first, earliest, or during which phase.

2. What It Is

Design Schedule
The design schedule is the time-phased plan for producing the project's design deliverables. It typically covers:
• Programming / Pre-design (needs, criteria, site, budget validation)
• Schematic Design (SD) – usually ~15% to 30% complete documents
• Design Development (DD) – ~60% documents
• Construction Documents (CD) – 90% to 100% documents ready for permit and bid
• Agency review, permitting, and constructability/value engineering reviews
• Owner review periods and approval milestones at the end of each phase
• Bidding/procurement of contractors and Notice to Proceed

The design schedule is built by (or in coordination with) the Designer, but the CM is responsible for ensuring it is realistic, that review durations are included, that it is integrated into the Master Schedule, and that progress against it is monitored and reported. Design schedules are often milestone-driven rather than fully logic-driven CPM, but on large or fast-track projects they are frequently developed as CPM networks so that document packages can be sequenced to support early construction.

Long-Lead Procurement
A long-lead item is any material, equipment, system, or service whose total procurement duration (design/specification, bid, award, submittal review, fabrication, testing, shipping, and delivery) is long enough that it could delay the activity that needs it—or the project—if it is bought at the normal point in the sequence. Classic examples include: switchgear and transformers, large chillers and air-handling units, elevators and escalators, structural steel, precast concrete, curtain wall, emergency generators, specialty medical equipment, custom millwork, specialty tile or stone, and imported products subject to shipping and customs delays. Permits, utility service connections, and environmental approvals are frequently treated as long-lead items as well.

Long-lead procurement is the deliberate strategy of identifying these items early and buying them earlier than the standard contract sequence would allow, so they do not control the critical path.

3. How It Works

Step 1 – Build the Master Schedule and Milestone Schedule in Pre-Design. The CM establishes the overall duration envelope, including design, permitting, procurement, construction, commissioning and occupancy. The required completion date is usually fixed by the Owner, so the CM works backward from the end date to establish when design packages and major procurements must occur.

Step 2 – Develop the Design Schedule. The CM works with the Designer to define deliverables, phase durations, Owner/agency review windows, and decision milestones. Key items the CM checks: Are Owner review periods realistic (not zero)? Are permitting and agency approvals shown with realistic durations? Are constructability reviews and VE workshops scheduled so they do not delay the next phase? Does the sequence of document packages support the construction sequence (e.g., foundations and structure first on a fast-track job)? Are design decisions that affect long-lead items scheduled early?

Step 3 – Identify Long-Lead Items Early (SD/DD). The CM, with the Designer and (if available) contractor or vendor input, lists candidate long-lead items and estimates their total procurement cycle. Typical total duration = time to finalize specification + bid/award time + submittal preparation + submittal review and approval + fabrication + factory testing + shipping + site receipt and inspection. The CM compares this duration against the required-on-site date from the construction schedule. If the normal procurement path cannot meet the required-on-site date (or leaves inadequate float), the item is designated long-lead and an alternate strategy is needed.

Step 4 – Select a Procurement Strategy. Common approaches include:
• Early or separate bid packages – the item is designed and bid ahead of the main construction documents (common in fast-track and CM-at-Risk or Multiple-Prime delivery).
• Owner-furnished / pre-purchased equipment – the Owner buys the item directly and later assigns the purchase order to the contractor (assigned contract) or furnishes it as Owner-Furnished, Contractor-Installed (OFCI). The CM must address warranty, receiving, storage, installation responsibility, and coordination risk.
• Early release / letter of intent – with a CM-at-Risk or design-build entity, authorize ordering before the GMP or full contract is executed.
• Pre-qualification and early submittal – require the contractor to submit long-lead shop drawings first and set contractual submittal priorities and review turnaround times.
• Allowances or performance specifications – allow ordering while the design is finalized.
• Design around availability – choose standard or readily available products, or approve alternates.

Step 5 – Integrate Procurement into the CPM Schedule. Each long-lead item is shown as a chain of activities (submit, review, fabricate, deliver) tied by logic to the installation activity. This makes the procurement path visible, shows its float, and allows the CM to monitor whether it is becoming critical. Procurement activities are often shown on a separate Procurement Schedule or Submittal Schedule that is logic-linked to the construction schedule.

Step 6 – Monitor, Expedite, and Report. The CM tracks design progress against milestones (percent complete, deliverables issued, review comments returned), tracks submittals against the submittal log, follows up with vendors (expediting), performs factory visits or witness tests when appropriate, and reports status and risks to the Owner. When slippage appears, the CM recommends recovery actions: re-sequencing, overtime in design, parallel reviews, expedited shipping, or scope adjustments. Changes to design or procurement milestones should be processed through the project's schedule change control procedures and documented.

Key Relationships to Remember
• Design completion date drives bid/award dates, which drive Notice to Proceed, which drives the start of procurement under a traditional Design-Bid-Build sequence. Any design delay flows directly to the end date unless float exists.
• Fast-track delivery overlaps design and construction and increases the need for early long-lead identification because the construction schedule is compressed and design packages are released in sequence.
• The CM does not design, but the CM is responsible for planning and controlling the time dimension of design and for advising the Owner on procurement strategy.
• Float on a procurement chain belongs to the project (unless the contract says otherwise); the CM should protect it and not let the procurement path consume it unnoticed.

4. Typical Exam Question Patterns

• Timing questions: When should long-lead items first be identified? (Answer: as early as possible—during pre-design/schematic design, not at bid or after award.)
• Responsibility questions: Who develops versus who monitors/integrates the design schedule? (Designer prepares; CM reviews for realism, integrates into the Master Schedule, and monitors.)
• Strategy questions: A chiller has a 40-week lead time but is needed 30 weeks after NTP—what should the CM recommend? (Pre-purchase by the Owner, early bid package, or early release, with assignment to the contractor.)
• Calculation questions: Given fabrication, shipping, submittal review, and bid durations, determine the latest date an order must be placed or whether the item is critical. Work backward from the required-on-site date and add all durations, including review cycles.
• Risk questions: What risks does the Owner assume with Owner-furnished equipment? (Delivery, fit/coordination, warranty, damage in storage, and contractor delay claims if the equipment is late.)
• Schedule integration questions: Where should procurement activities appear? (As logic-tied activities in the CPM schedule or a linked procurement/submittal schedule, with float visible.)

5. Exam Tips: Answering Questions on Design Schedule and Long-Lead Procurement

Tip 1 – Choose the earliest reasonable point in time. CMAA philosophy is proactive. If an answer choice says identify, plan or address during pre-design or schematic design, it usually beats an option that waits until bid, award, or the submittal stage.

Tip 2 – Think from the Owner's interest, through the CM's role. The CM advises, plans, coordinates, and controls; the CM does not design, does not perform construction, and generally does not make unilateral Owner decisions. Eliminate answers where the CM alters the design, directs subcontractors, or commits the Owner's money without authorization.

Tip 3 – Work backward from the required date. For any duration or latest-order-date problem, start from the required-on-site or installation date and subtract every step: delivery, shipping, fabrication, submittal approval, submittal preparation, award, and bid. Do not forget review cycles and resubmittal time—exam items often omit them in distractors.

Tip 4 – Recognize fast-track implications. If the stem mentions fast-track, phased design packages, CM-at-Risk, or design-build, expect the correct answer to involve early release, separate bid packages, or early procurement authorization, along with increased coordination risk.

Tip 5 – Know the vocabulary. Be comfortable with: Master Schedule, Milestone Schedule, design phase schedule, procurement schedule, submittal schedule, long-lead item, lead time, required-on-site date, pre-purchase, Owner-furnished (OFCI), assigned purchase order, letter of intent, early release, float, critical path, expediting, and recovery schedule.

Tip 6 – Integration beats isolation. When asked how procurement or design should be shown or managed, the best answer ties them into the CPM network with logic so float and criticality are visible, rather than tracking them only in a spreadsheet disconnected from the schedule.

Tip 7 – Pre-purchase has trade-offs. If a question asks for a disadvantage or risk of Owner pre-purchase, think about warranty gaps, storage and damage, coordination of connections and dimensions, and the contractor's ability to claim delay if the Owner's item arrives late. If it asks for an advantage, think schedule protection and sometimes cost savings or tax benefits.

Tip 8 – Realistic review durations are a classic trap. A design schedule that shows zero or unrealistically short Owner and agency review periods is flawed; the CM's correct action is to require realistic durations and coordinate decision milestones, not simply to accept the Designer's dates.

Tip 9 – Document and communicate. When slippage is detected, the right CM behavior is to analyze impact, identify options, recommend recovery to the Owner, and document the decision—never ignore it, and never silently absorb float.

Tip 10 – Read for qualifiers. Words such as first, best, most appropriate, earliest, and primary are deliberate. Rank the plausible choices against the CMAA standard of early planning, integration into the Master Schedule, and CM as advisor/controller, then pick the one that satisfies the qualifier.

Quick Review Summary
• Design schedule = time plan for SD/DD/CD, reviews, permits, bidding; Designer prepares, CM validates, integrates and monitors.
• Long-lead item = anything whose full procurement cycle threatens the required-on-site date; identify in pre-design/SD.
• Strategies = early bid packages, Owner pre-purchase with assignment, early release/letter of intent, prioritized submittals, alternates or standard products.
• Show procurement chains in the CPM schedule with logic ties so float is visible; expedite, monitor, and report.
• On the exam: earliest timing, Owner interest, CM advisory role, backward-pass logic, and realistic review durations are the recurring correct themes.