Ask for a letter on letterhead naming the U.S. entity, stating the profession in the words used by the Appendix 2 list, describing the forestry duties concretely, and giving the period, the salary and the credential relied on. It should be signed by someone with authority.
Write it for a reader who knows the list and nothing about timberland
A support letter fails when it reads as internal company language. The reader may know the profession list well and know nothing about how timberland is managed, so abbreviations, product names and internal team names should be replaced with plain description. Useful wording covers cruise and inventory design, stand-level prescriptions, regeneration surveys, harvest scheduling from a silvicultural standpoint, and reporting to a named professional.
Sales targets, acreage under management as a marketing figure, and phrases such as broad operational ownership do the applicant no favours. The letter should state the requested period, note that the position is temporary, and confirm that the employer has reviewed the specific credential. Marc-Olivier should ask to see the draft rather than learn its contents at a port of entry, and he should keep a copy for renewals.