Finding plastic packaging and plastic Jars that are compatible with Marijuana is easier if you know what kind of regulations there are on marijuana packaging.  For example, try to find information like Colorado's Packaging and Labeling Requirements for Retail Marijuana for Consumer Protection and Child Safety:  https://www.denvergov.org/Portals/768/documents/Ma...  

it states that: 

               Before sale to a consumer, a retail marijuana store must place any of these products in a container              that is child-resistant or place the container in an “exit package” that is child resistant. “Child resistant” packaging must conform to federal consumer product safety regulations and an ASTM standard; be opaque so the product cannot be seen; be closable if not intended for single use; and be properly labeled pursuant to the Retail Code. Proper labeling includes specific warning statements for each of the three product types; Colorado’s Universal Symbol indicating the container holds marijuana; a list of all nonorganic pesticides, fungicides and herbicides used to produce the marijuana; and a list of solvents and chemicals used to produce marijuana concentrate. Use of certain pesticides and chemicals is prohibited. Containers for edible marijuana products must be labeled with all ingredients, if refrigeration is required, standard serving limit and expiration date.

Parkway Plastics manufactures Plastic Jars for many industries including the medical marijuana industry. 

If you're interested in marijuana packaging, it might be good to know that Parkway manufacture jars in many sizes and can work with you to find the jar you need.  

Wholesale plastic jars for marijuana is something we've got experience with.

For more info on medical marijuana packaging and plastic jars and caps- go to: http://www.parkwayjars.com/jars-for-medical-mariju...