Know who's on site, who's inducted and who's still inside when the alarm sounds. Learn which sign-in method fits your site and how to keep it consistent across projects.
Construction site sign-in is the process of recording who is on a jobsite, which company they work for and when they arrive and leave. It covers your own workers, subcontractors, visitors and delivery drivers. Most sites run it with a paper sheet, a QR code or an app.
It's easy to confuse sign-in with access control. Access control decides who gets through the gate. Sign-in records who actually did, so you have one list to check when something goes wrong.
Picture the alarm going off at 10 am. Six subcontractor crews are on site, two trucks are mid-delivery and a client is touring the second floor. The supervisor needs one answer: who's still inside? Without a record, they're guessing. With one, they walk to the assembly point and call the names.
The roll call is the clearest reason to sign in, but the record does more than that. After an incident, it shows who was on site and for how long. For audits, it shows which crews were working and whether each person was inducted. Site access control keeps the wrong people out. Sign-in proves who was in.
Everyone who enters the site signs in, whatever their job or how long they're staying. That means your own workers, subcontractors, visitors such as clients and inspectors, and delivery drivers.
Subcontractors are the group most likely to slip through. They arrive in crews, start early and answer to someone else. If you run a lot of outside crews, contractor management covers the wider job of onboarding and tracking them.
A usable record answers four questions. Who is this person? Which company do they work for? When were they on site? Are they cleared to be there? In practice that means a name, company, person type, time in and out, induction status, PPE confirmation and a signature.
Keep the gate step short, because people sign in with a line behind them. Put anything that applies to the whole site in a header the supervisor fills in once. A one-page digital daily sheet lists every field, and a site induction covers what people need to know before they start.
The right method depends on how many entrances you have, how many crews arrive each day, how long the job runs and how many visitors you get.
Method | How it works | Best for |
|---|---|---|
Paper sheet | Everyone writes their details at the gate | One site, a small crew, a short job |
QR code | People scan a code and sign on with their own phone | Busy gates, many subcontractors and visitors |
Kiosk or tablet | A shared device at the entrance | A single main entrance with steady traffic |
App with worker accounts | Workers sign in through a registered account | Long projects with the same crews |
Paper still works when one person owns the sheet and it doesn't go missing. It struggles once you have several entrances or crews, because nobody can see who's on site without walking to the gate.
Going digital pays off beyond the gate. Byblos Construction moved its safety checklists, compliance checks and risk assessments into one digital system. Teams now flag risks to leaders quickly, which leaves fewer blind spots across its job sites.
Trucks, equipment operators and subcontractors often arrive at your jobsite long before the build starts, so put site access control in place on day one. Sign On, the second feature in the Mitti (by SafetyCulture) construction module, covers it. Workers, visitors and subcontractors sign on with a QR code on their own phone or at a site kiosk, and you can ask for a site induction before they do. Visitors can also sign on without needing a Mitti account.
Consistency is the hard part. Three sites with three different processes give you three different records. Fix that first.
Use one process everywhere. Keep the same fields, the same order and the same person types.
Name an owner for each site. The site supervisor owns the daily record, with a named backup for days off.
Agree what happens out of hours. Weekends and early starts are when no supervisor is at the gate.
Review on a schedule. A safety officer or project manager spot-checks each site's records and follows up on gaps.
Say you run a school build and a warehouse fit-out at the same time. If both follow the same process, you can compare attendance and chase gaps the same way on both.
Once sign-in is digital, the record does more than protect you after an incident. Attendance by crew shows whether subcontractors are staffing the job as planned. Time in and time out show when the gate is busiest, so you can add a second sign-in point before the 7 am rush. When something does go wrong, the record shows who was on site, so investigators can talk to the right people first. Check the data every week, not only after an incident.
A sign-in record isn't a named requirement in the main safety standards, but it can serve as evidence. ISO 45001 is the international standard for occupational health and safety management systems. In Australia and New Zealand, it's published as AS/NZS ISO 45001:2018. Under either one, a sign-in record can show that you control who's on site and that people were inducted before they started. Local rules vary, so check with your safety or legal team.
Mitti (by SafetyCulture) is the operations system for every site, shift and standard. Trusted by over 80,000 organizations, Mitti brings your people, operational data and workflows into one operating picture.
Construction: Keep your projects moving without the paperwork. Digital inductions and credential tracking make sure every contractor is site-ready before they start. Your teams flag hazards the moment they happen, so you can see safety across every project.
✓ See what's happening across every site and shift ✓ Catch issues the moment they happen ✓ Turn every issue into a clear next step ✓ Improve every day with evidence from the people doing the work
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