Visitor Management for GACP Cannabis Farm
Visitor control protects product and people. Solar Farm Thailand, a cannabis farm in Pathum Thani, north of Bangkok, registers every visitor, screens hygiene, and limits access by zone. The program aligns with GACP and keeps medical cannabis ready for wholesale in Thailand.
Visitors can introduce dust, hair, and microbes. Screening reduces that risk and stabilizes room conditions. Policies define who may enter, where, and for how long. Registration, hygiene checks, and escorted movement are logged. Records show purpose, zones visited, and times. Deviations receive corrective action and sign-off.
Registration Flow
Check in at reception. Present ID and company details. State purpose: inspection, purchase, maintenance, or training. Receive a dated badge with authorized zones. Nonessential items stay outside. Phones and tools follow wipe-down rules or are stored.
Hygiene Screening
Confirm no fever, cough, or open wounds. Remove jewelry and accessories. Wash hands and don PPE as posted: mask, hair cover, and appropriate gown or cleanroom suit for higher grades. Wear approved footwear or boot covers. Staff verify attire before air-lock entry.
Access Rules
Only approved zones per badge. Doors remain closed. Escort required for processing and drying rooms. No food or drink. Photography is by permission only. Any breach ends access and triggers re-screening.
Logs link each visitor to zones, times, escorts, PPE issuance, and any incidents. Maintenance visitors attach work orders and part lists. Buyer tours attach NDAs and route plans. The register is retained per GACP retention rules so auditors can trace who entered a room during a quality event.
The visitor record, and what an auditor asks for
The visitor log is one of the first documents an auditor asks to see, because it is a cheap test of whether the rest of the system is real. It shows who came in, who authorised the visit, which zones they entered, who escorted them and when they left. A log with gaps in the escort column tells an auditor more about a facility than any policy document.
Solar Farm Thailand keeps entries by zone rather than by building, because access is granted to a zone and not to the site. A buyer visiting for a facility viewing sees the areas relevant to that viewing and is escorted throughout. Contractors working on plant or electrical systems are booked against a specific task and a specific window, and the record notes what they worked on so it can be matched against the maintenance log later.
Photography is handled in the same record. Faces need consent, and visitor badges are kept out of frame in anything published, which is a rule about the visitor privacy rather than about our own security. Records are retained so that any batch under discussion can be matched against who was in the building while it was growing.
Induction before the air-lock
Screening only works when the visitor understands each step, so Solar Farm Thailand briefs every visitor at reception rather than at the gowning bench. The briefing covers the route, where hands are washed again between zones, and what to do if the visitor leaves early. The visitor acknowledges it on the registration entry.
Escorts are named staff with a training record. A visitor is never passed between escorts without the handover written into the log.
Contractors receive the same induction, and their work order names the room, the task window and the tools coming in. Typical practice is to count tools in and out.
Common failure modes and their corrective actions
Recurring breaches are rarely dramatic: a door held open for a delivery, a badge worn into the wrong zone, a phone carried past the wipe-down bench. Each is written up as a deviation.
- Wrong zone entered: the visit stops, the room is noted in the log, and the supervisor decides whether its environmental record needs a comment.
- Escort gap: the visitor waits at the nearest controlled point until a named escort is recorded.
- PPE worn incorrectly: back to the gowning bench, with re-screening signed off before re-entry.
- Photography without permission: images are deleted in front of the escort and the incident is recorded.
The deviation record names a root cause and is closed by signature only once the corrective action has been checked. Repeated deviations of one type trigger a review of the procedure, not another reminder to staff.
Reviewing the register between audits
A register opened only during an audit is not a control. Typical practice is to review it at set intervals against the escort roster, the maintenance log and the batch calendar, checking that every entry has an exit time, an escort and a matching purpose. Blank fields are counted and reported to the quality function before an auditor finds them.
A licensed buyer’s due diligence overlaps with the audit. The buyer wants the entries covering the weeks their batch was in flower at the farm in Khlong Luang, Pathum Thani, and evidence that any deviation logged then was closed. Producing both from one register separates a documented programme from a stated one.
Last updated: 22 September 2026