It should identify the employer, the professional position, the specific forestry duties, the wage, the work location and the intended period, and it should be signed by someone with authority. Vague titles or missing dates can cause a port-of-entry application to stall.
Write the letter for an officer who has never met the company
The inspector will read the letter cold, so it must stand alone. Name the employer with its address and a contact who can be telephoned. State the position as Forester and describe the tasks in plain terms: preparing management plans, designing inventory plots, prescribing treatments, scheduling harvests, preparing regulatory filings.
Give the salary or hourly rate, the primary work site and any travel between tracts, and the requested period, which can be up to three years. Explain how the applicant meets the listing — degree or licence — and attach the credential. If the applicant will also supervise contractors, say so honestly rather than omitting it.
Add a sentence confirming the applicant is not an owner of the company, or disclose the interest if there is one. Bring the original letter, a copy, the credential and the passport, and keep a second set at home in case the first is retained. A first review produces a document order keyed to the letter: passport, qualifying credential, licensing record if relevant, and ownership disclosure.
Hypothetical example: a Canadian soil scientist hired to analyse nutrient data should ask the employer to attach the project description and identify the supervising agronomist. The employment letter, not informal email exchanges, settles whether the paid duties are professional. Obtain a corrected letter before travel if its title and task list point in different directions.