What documentation is needed for a Used Household Goods Effects Duty Exemption on a Non-O Retirement Visa in Thailand?

The post seeks advice on obtaining a Used Household Goods Effects Duty Exemption for a non-O retirement visa, requesting information on required documentation and the approval timeframe. The comments suggest a work permit is needed for this exemption, which is not available with a retirement visa, and emphasize that personal effects must be imported within six months of arriving in Thailand.