A lot of this is just my opinion, but before becoming disabled I worked for 15 years in the maternity / children's retail industries.
1) it makes it impossible to make reversible aprons, yes?
No, not impoosible, but tricky. I've seen buntings, coats, art smocks, ponchos, and aprons that were all reversible with the proper FTC labels they are either hidden in a pocket or part of the lower hem as a regular tag that sticks out of the seam.
2) i have been sewing for over 35 years and my studio is filled to the brim with unknown fabric. they are all primarily cotton but could have some blend, im not really sure. the FTC website recommends writing: Made of unknown fibers or something similar but that just sounds really suspicious.
Double check directly with the FTC certain product categories do not need exact fiber content or care labels, and on certain products that do it can be part of a hang tag instead of directly on the product.
3) is the verdict out about needing lot and item numbers?
For the CPSIA yes unless you are making several items identical for the same source of raw materials. For certain FTC product categories no, agian double check with them directly.
4) writing down the content and country of origin and then keeping it organized seems to require a whole new level of sophistication to my system
For the CPSIA the definition of country of origin is different that what most people are thinking - they want the country of origin with city and state/providence that the final item is assembled in ex. : Toms River, NJ, USA. For items that require the detailed FTC labels they want the fiber content by percentages and country of orgin for that specific fabric listed ex. : 90% Wool (New Zealand) 10% Organic Cotton (America) exclusive of trim. Old stock there is nothing you can do except for going with the unknown fiber content. For new fabric purchases just bring a notebook with you to the fabric store & ask for them to cut a small swatch off your order & staple it to a notebook page the the info from the bolt. If you order online make sure you printout the product description & again take a small sample of the fabric when you receive it and attach it to the printout
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5) i was hoping to buy these labels in bulk but since i don't make my items in bulk and they all use separate fabric, the time to make these labels and have them produced seems burdensome.
Can help you with this one, but you migjt consider checking out what the local fabric or craft store has in the way of ink jet printer fabrics. There was another thread going on that subject.
6) has anyone requested an rn number? do you need a business license for one? i own a business license but in a different name, should i aquire one for all of my etsy shops and get an rn number for each one?
Not sure abiout the RN # and if the business needs to be under the same name as the label, again another question for the FTC directly.
7) is the FTC label law already in effect? any chance of them saying oopsie, our bad, nevermind!?
The FTC has been in effect since at least the 1970s not sure exactly when, but that when it became a federal law for clothing to have precise fabric content and laundering instructions. Before that it was only done as a customer curtesy.
Most of all get the facts straight from the agencies that control these 2 different laws whenever possible
CPSIA Tracking labels
http://www.cpsc.gov/about/cpsia/sect103policy.pdfFTC Labeling requirements
http://www.ftc.gov/bcp/edu/pubs/business/textile/bus21.shtm#covered