Why plan inspection deadlines and costs together?
Small factory owners often coordinate production, deliveries and staffing alongside equipment compliance.
A calendar entry for the inspection due date can still miss the earlier application deadline, while a fee-only budget leaves out travel charges and the economic effect of stopping a machine.
This calculator connects verified equipment records with a schedule and a budget under Korean 2026 rules.
The supported equipment groups are fixed factory cranes and hoists, presses, and pressure vessels confirmed to require inspection under the Occupational Safety and Health Act.
A similar machine name does not establish the same obligation: specifications, structure, site use and inspections under other legislation can change the answer.
Ask the inspection agency to check the nameplate and certificates first.
The result is a planning record, not an application receipt, inspection pass, exemption decision or permission to operate.
Confirm the inspection system before entering a machine
Supported equipment
Enter one actual fixed factory crane or hoist, press or pressure vessel per row after an agency confirms the Korean inspection obligation.
Machines of the same model may have different installation dates and inspection histories and must therefore have separate entries.
An asset label makes it easier to match the downloaded schedule to the physical equipment.
Separate systems and exclusions
Construction-site cranes, mobile equipment, construction machinery governed by its own registration system, elevators, mechanical parking systems and recognized self-inspection programs are outside this calculator.
An inspection under high-pressure gas or energy legislation does not automatically establish an exemption here.
Check the actual exemption conditions and supporting documents with the responsible agency.
Article 78 of the Enforcement Decree excludes cranes with a rated load below 2 tonnes and delegates detailed types, specifications and forms to an official notice.
That single threshold is not a complete eligibility test.
Pressure vessels also require consideration of their purpose, construction and other applicable laws.
This tool asks for a confirmation status instead of guessing scope from a name or a single specification.
Unconfirmed and excluded equipment receives a clear withheld result rather than an invented schedule.
First inspection within 3 years; repeat intervals of 2 or 4 years
First-inspection limits and repeat intervals for supported fixed factory equipment| Equipment and verified condition | First inspection | Repeat interval |
|---|
| Fixed factory crane / hoist | Within 3 years of installation | 2 years |
| Press / ordinary pressure vessel | Within 3 years of installation | 2 years |
| Pressure vessel with submitted and verified PSM report | Within 3 years of installation | 4 years |
The four-year exception applies to repeat inspections of a pressure vessel for which the process safety report has been submitted and verified.
It does not extend the first inspection to four years: the first inspection remains due within three years after installation completion.
Preparing a report or knowing only that it was submitted does not establish verification.
Choose unconfirmed until that status is checked; the calculator withholds the pressure-vessel projection while the applicable interval is unresolved.
Construction-site cranes have a separate six-month interval from first installation.
Applying the factory three-year/two-year pattern to them would give a misleading schedule, so selecting a construction site withholds the calculation.
Use the installation completion record, which can differ from the purchase date or invoice date.
Application deadline, due date and inspection window
Date formulas
- Apply by = inspection cycle due date − 30 calendar days
- Inspection window = due date − 30 days through due date + 30 days, inclusive
- For a pass within that window, the legal anchor remains the cycle due date rather than the actual test date
Article 124 of the Enforcement Rule requires the application 30 days before the cycle expires and provides an inspection window of 30 days on either side.
A successful inspection within the window is treated as an inspection on the cycle due date.
The calculator distinguishes an application due today, an application deadline already passed, an inspection due today, an overdue inspection and an expired window.
The application warning does not establish that you failed to submit: compare it with the actual receipt and booking.
The 30 days after a due date are not permission to operate.
Article 95 of the Act prohibits using equipment that has not received the required inspection or has failed it.
Booking, inspection preparation and actual operating status require their own checks with the agency.
This tool does not automatically decide whether a particular machine may keep running.
Confirm practical receipt and inspection arrangements before weekends or public holidays.
Choose the correct legal anchor for a repeat inspection
After the first successful inspection, verify the actual first-pass date.
For a later regular inspection passed within its permitted window, use the previous cycle due date as the legal anchor.
Passing ten days early does not automatically move every later due date ten days earlier.
Enter the anchor confirmed by the certificate and inspection agency and select the verification checkbox.
Recalculate after an early first pass
The three-year anniversary is the latest first-inspection limit, not necessarily the actual first-pass date.
Before-first-inspection mode projects later dates on the assumption that the machine passes on that limit and then follows the applicable two- or four-year interval.
If the first pass happens earlier, switch to repeat mode and enter the actual first-pass date.
Later dates in the first-inspection projection are conditional budget scenarios rather than confirmed bookings or guaranteed legal due dates.
An out-of-window pass, relocation, modification, missing inspection history or return after a long shutdown can require an agency review of the anchor.
Until confirmed, the tool does not add two years to today and pretend the obligation has restarted.
An anchor before installation or a claimed future pass date is rejected.
What the fee and downtime inputs mean
Cash charges
Cash charges equal the inspection fee plus the travel charge allocated to that machine.
Use a current final quote for the relevant agency, equipment type and specification, including applicable taxes.
The tool does not add VAT automatically, so reconcile the quote boundaries before entering it.
If a single visit covers several machines, allocate the visit charge once across them rather than entering the whole visit charge on every row.
Opportunity cost
Opportunity cost equals machine downtime multiplied by the verified hourly economic loss, rounded to the nearest won.
Treating all hourly sales as lost profit can exaggerate the result: consider production recovery, variable costs and the actual economic effect.
Downtime accepts up to two decimal places.
This cost is distinct from an amount invoiced by the inspection agency.
Economic budget = cash charges + opportunity cost.
Repairs, preparation staff, repeat-test charges and spare parts do not appear automatically in these four fields.
Manage additional verified costs separately and avoid entering the same work both inside the inspection quote and as an extra allowance.
When several machines stop at the same time, summed machine hours differ from actual plant downtime.
A blank field is unconfirmed, not free
Leave the inspection fee blank while awaiting a quote.
Entering zero for an unknown amount understates the funds needed.
Blank inputs remain unconfirmed, and zero should be reserved for a verified zero charge.
Complete cash charges require both the fee and travel amount; the full economic budget also requires downtime and hourly opportunity cost.
Known subtotal is not the complete budget
If the inspection fee is unknown but allocated travel is KRW 10,000, downtime is 2 hours and verified opportunity cost is KRW 50,000 per hour, the known subtotal is KRW 110,000 per inspection.
It excludes the missing fee.
A machine with unconfirmed scope or an unverified anchor has an unknown inspection count as well.
The overall budget therefore remains unconfirmed while the tool shows the schedulable and known components separately.
Step-by-step use and supporting records
- Collect nameplates, installation completion records, the latest certificates and agency guidance. Confirm inspection scope and any exemption.
- Set your reference date and a budget horizon of 1–10 years. The initial date is the verification date, so change it to your current planning date.
- Add one actual machine per entry, select the equipment type, site and first or repeat inspection stage, and enter the installation and legal anchor dates.
- For a pressure vessel, verify submission and verification of the process safety report. Its exception does not apply to other machine types.
- Enter only the verified inspection fee, allocated travel and downtime assumptions. Preserve blank fields while evidence is missing.
- Contact the agency for the most urgent applications, coordinate production downtime and save the schedule alongside certificates and receipts.
Inputs are calculated in this interface, and the download button saves the current schedule and budget as a text file.
Downloading does not submit an application or reserve an inspection.
Before sharing the file, check the reference date, asset identifiers, unconfirmed items and whether every fictional example has been replaced by actual evidence.
Worked example: five-year plan for one fixed crane
Check both dates and amounts
Assume a reference date of 2026-11-06 and a fixed crane installed on 2023-12-01 that has not yet received its first inspection.
Its first-inspection limit is 2026-12-01, the application deadline and window start are 2026-11-01, and the window ends on 2026-12-31.
The application deadline has passed by the reference date, so check the actual receipt and booking promptly.
The fictional verified inputs are an inspection fee of KRW 77,000, allocated travel of KRW 10,000, 2 hours of downtime and KRW 50,000 per hour of opportunity cost.
One inspection has KRW 87,000 in cash charges, KRW 100,000 in opportunity cost and a KRW 187,000 economic budget.
Do not treat this example fee as a universal crane tariff.
From 2026-11-06 through 2031-11-06 exclusive, assuming a first pass at the latest limit and an unchanged two-year interval, inspections fall in 2026, 2028 and 2030.
The three inspections produce KRW 261,000 in cash charges, a KRW 561,000 economic budget and 6 machine hours.
Recalculate after an earlier first pass or a quote change.
A verified PSM pressure vessel with a last legal anchor of 2024-01-01 has its next repeat due date on 2028-01-01.
However, if a vessel installed on 2020-01-01 has never passed its first inspection, its first limit is 2023-01-01; it cannot be relabeled as a 2028 obligation.
That is why stage and actual inspection history must be checked before relying on a cost projection.
Overdue equipment, annual rows and calendar assumptions
When an unresolved due date is before the reference date, the calculator preserves that original date and includes one backlog inspection in the current-year budget.
It does not assume missed inspections were passed, jump forward by repeated two-year intervals or automatically create a later normal cycle.
Resolve the outstanding position with the agency and then enter the verified post-pass anchor in repeat mode.
Allocating its expense to this year does not extend the legal deadline.
The budget includes the reference date and excludes the same calendar date after the selected number of years.
If it starts or ends midyear, the first and last annual rows cover partial years.
An inspection exactly on the end date is excluded, and years with no in-scope inspections display zero.
Annual rows cover schedulable machines only: read them together with the withheld-machine count and unknown-cost markers.
Calendar-year addition adjusts February 29 to the last day of February where necessary.
The application calculation subtracts 30 calendar days rather than business days and does not automatically extend a deadline falling on a holiday.
Check leap-day installations, individual agency notices and special anchor cases against the actual records.
The projection holds Korean 2026 rules and entered quotes constant; future legal changes and inflation are not applied automatically.
Practical planning situations and responsibility
- Annual budgeting: distinguish future inspections from unresolved backlog and reserve verified cash charges first.
- Production scheduling: check receipt and booking around the application deadline, then compare machine downtime with delivery commitments.
- New equipment: preserve installation completion evidence and assign responsibility for the first-inspection limit.
- Pressure-vessel records: reconcile PSM verification and other-law inspections before assuming a four-year exception or exemption.
Where the user and owner differ, confirm who carries the statutory inspection obligation.
Article 93 places the inspection obligation on the owner when the user and owner are different.
Check contractual cost allocation as well as the statutory duty.
Even if application, shutdown coordination and budgeting belong to different people, reconcile the asset identifier and final inspection history before acting.
Frequently asked questions
Does a PSM vessel get four years for its first inspection?
No.
The first inspection remains within three years after installation.
Four years applies to later inspections of a vessel with a submitted and verified process safety report.
Does an early inspection always restart the two-year period?
Distinguish the first pass from later regular passes.
For a later pass within the permitted window, the previous cycle due date remains the legal anchor.
Use the date confirmed by the agency.
May I operate for 30 days after the due date?
The inspection window does not establish permission to operate.
Check the prohibition on uninspected or failed equipment and the agency instructions for your actual circumstances.
I do not know whether there is a travel charge.
Leave the field blank so it remains unconfirmed.
Enter zero only after confirming that the charge is actually zero.
Will several overdue years be skipped to the next inspection?
No.
The earliest unresolved inspection is preserved and later cycles are withheld.
Resolve it and enter the verified new anchor.
Should simultaneous inspections add all downtime hours?
The table sums machine hours, which differ from total plant downtime.
Allocate a shared travel charge only once across the machines.
Are the fees official fixed amounts?
No tariff is built into this tool.
The sample amount is fictional input; obtain the current final quote for the agency, machine type and specification.
Can I use this for construction cranes or high-pressure gas equipment?
Only the three confirmed fixed factory groups are supported.
Construction intervals and other-law inspection or exemption conditions need their own agency review.
Official sources and effective dates
Verified November 6, 2026.
The applicable Act Articles 93 and 95 were checked in MST 283449, effective June 1, 2026.
Enforcement Decree Article 78 uses MST 288347, and Enforcement Rule Articles 124, 125 and 126 use MST 288431, effective August 1, 2026.
The latest Act search returned MST 291447, but its detail response labeled the relevant articles April 28, 2027; those future article dates were not substituted for the applicable text.
The official fee page displayed an application date of June 26, 2026, and a fresh final quote remains necessary at booking.
Take the equipment records and schedule to the agency
Prepare scope confirmation, installation evidence, the latest certificate and legal anchor, PSM verification where relevant, the final quote and the downloaded schedule.
Prioritize machines with passed application deadlines or expired inspection windows when contacting the official inspection agency.
After a pass, update the anchor and actual costs, then reconcile the same records at the next budgeting cycle.