Most teams arriving from Asia or Mexico assume a US plant is the same project with a different address. The engineering usually is. Almost nothing around it is — and the three differences below are what push schedules, not the building itself.
1. You cannot self-perform the licensed trades
In Mexico a general contractor can carry electrical, mechanical and plumbing work with its own crews. In most of the United States it cannot. Electrical, HVAC/refrigeration and plumbing are licensed occupations, and the licence sits with a person and a firm, not with your project.
In Texas, for example, electrical and air-conditioning & refrigeration contractors are licensed state-wide by the Texas Department of Licensing and Regulation (TDLR); plumbing sits with the Texas State Board of Plumbing Examiners. An electrical contractor licence requires the firm to employ a licensed master electrician.
The practical consequence: your MEP scope will be executed by licensed US subcontractors, and the quality of your project depends on whether your general contractor can actually hold those subcontractors to a drawing set — not on how good your own installation team is at home.
- Budget for subcontracted MEP at US labour rates from day one, not imported crews.
- Qualify subcontractors on licence and bonding capacity, not price alone.
- Expect the licensed trades to control the critical path once the shell is closed.
2. There is no national permit path — the AHJ is local
There is no single US building authority. The Authority Having Jurisdiction (AHJ) is normally the city or county, and it adopts its own edition of the model codes, with local amendments. Two sites forty minutes apart can review the same drawings differently and on different timelines.
This is the single most common planning error we see in programmes imported from a country with a national code. A schedule built on "permitting takes X weeks" without naming the jurisdiction is not a schedule.
Separately, some requirements are state-level and easy to miss. In Texas, commercial projects with a total estimated construction cost of $50,000 or more must be registered with TDLR and reviewed by a Registered Accessibility Specialist under the Texas Architectural Barriers Act — a step with its own filing, its own fee and its own review clock, independent of the city permit.
3. Imported equipment is not approved until a US body says it is
This is where imported programmes lose the most time, and it is almost always discovered late.
The National Electrical Code requires that listed or labelled equipment be installed in accordance with its listing (NEC 110.3(B)); the 2023 edition addresses non-listed equipment explicitly, requiring it to be evaluated to provide equivalent safety. Equipment that carries a CE mark, a CCC mark, or a manufacturer's own certificate is not listed in the US sense.
The remedy is a field evaluation by a Nationally Recognized Testing Laboratory or field evaluation body, performed under NFPA 790 and NFPA 791. Three properties of that process drive schedule:
- It is site-specific and one-time — it labels that one machine, in that one installation.
- It must be done after the equipment is installed in its final location, so it cannot be cleared before shipment.
- The AHJ decides whether to accept it. A field label is the usual route, not a guaranteed one.
If your production line is twelve imported machines, that is twelve evaluations sitting between mechanical completion and energisation — and they sit at the end of the programme, where there is no float left.
Voltage and frequency: the quiet one
US industrial distribution is typically 480 V / 60 Hz three-phase, against 380–415 V / 50 Hz in most of Asia and Europe. Motors run roughly 20% faster at 60 Hz, which changes fan and pump duty, bearing life and sometimes the process itself. Transformers and drives can bridge the voltage; they do not bridge the physics of the frequency change.
Decide early, per machine, whether you convert, re-specify, or buy locally. This decision belongs in the equipment purchase order, not in the construction programme.
Labour and procurement compliance
Every worker on the site must be employment-authorised and documented on Form I-9. There is no route by which a contractor imports site trades on a business visa — a point worth settling with your own team before it becomes an enforcement question.
On procurement, tariff classification and country of origin now move delivered cost enough to change sourcing decisions outright. Compare quotes on a delivered, duty-paid basis or you are not comparing them at all. Where a project draws public funding or incentives, domestic-content conditions may attach as well.
What this means for the programme
Rank the risks in the order they will actually bite you: equipment approval, then the licensed-trade subcontractor market, then the AHJ review, then the building. Most imported schedules do the reverse.
A realistic US programme front-loads two things that feel premature: naming the jurisdiction and starting equipment approval conversations while the machines are still being built.
How CTECP works in the United States
CTECP delivers design-build and EPC through CTECP INC, the group's US entity, with locations in Houston, Dallas and Greenville, South Carolina. The group has delivered 250+ industrial projects and 580,000+ m² across 9 countries since 2016.
What we are actually built for is the crossing itself: converting Chinese and European engineering to US codes, holding licensed US subcontractors to that drawing set, and running the whole thing in English, Spanish and Mandarin so the owner's engineering team, the designer and the site are reading the same document.
If you are weighing a US site against a Mexican one, we build in both and will tell you plainly which fits the product and the schedule.