01

What is changing or failing?

Turnaround scope decisions often accumulate review steps as the organisation tries to control technical, financial and execution risk. The process appears rigorous, yet the same packages circulate repeatedly because the evidence threshold, decision owner or escalation rule is unclear.

The visible symptom is a slow approval. The underlying failure may be fragmented evidence, unresolved decision rights or a workflow that treats every scope item as if it carried the same consequence.

The answer is not to remove required process-safety gates. OSHA guidance makes clear that turnaround modifications other than replacement in kind may require management of change, updated process information and procedures, training and pre-startup review. The improvement opportunity is to make the evidence and authority for those gates explicit early enough that they do not become late surprises.

02

Why does it matter commercially?

Delay compresses the time available for procurement, contractor planning, materials assurance and constructability review. That can increase premium purchasing, change exposure and the probability that work is deferred or executed with less preparation.

The relevant management question is therefore not how quickly every approval can move. It is where decision latency is now transferring cost or execution risk into the turnaround window—and which budget or schedule line carries it.

03

What must management decide?

Management must decide which decisions require additional evidence, which can proceed under defined conditions and which should be escalated or stopped. That requires explicit thresholds—not another general request for better collaboration.

A useful decision design separates technical authority from commercial prioritisation and workflow ownership. Each can remain rigorous without allowing responsibility to disappear between functions.

Classify the queue before accelerating it

  • Mandatory control: a defined legal, process-safety or technical-authority requirement
  • Value decision: management chooses between cost, scope, schedule and operating consequence
  • Evidence rework: the package returns because the required basis was not clear or complete
  • Waiting: the case has no active decision-maker or escalation trigger

Only the last two are pure workflow waste. Treating mandatory control as delay weakens governance; treating avoidable rework as rigour protects poor process.

04

What evidence is required?

  • Actual cycle time by decision type, including rework and waiting time
  • Scope changes and late commitments linked to decision dates
  • Required versus requested evidence at each gate
  • Named decision owner, advisers and escalation authority
  • Commercial or schedule consequence of another delayed cycle
  • The accountable owner for the cost of delay and the final decision
  • Classification of waiting time into control, value decision, evidence rework and inactive queue time

05

What should happen next?

  1. Choose one recurring decision queue rather than attempting to redesign the full turnaround process.
  2. Establish the cost-of-delay baseline in schedule, premium procurement, contractor readiness or deferred scope, then map the actual route taken by recent cases.
  3. Define evidence thresholds, conditional approvals and escalation rules for that queue.
  4. Run the redesigned path for 90 days and measure decision time, rework and downstream exceptions.