This is an important issue to spread, and to find a solution for. Please comment below if you have any more info.
For people in the EU there will be a big impact from this two issues of the above subjects:
The EU-Regulation 98/2013 on the marketing and use of explosives precursors which is in force since September 2014, will target members of the general public and at the grace period will expire at 02.03.2016. After that date members of the general public will need a permit to obtain, use and handle some chemicals e.g. hydrogen peroxide with more then 12% and nitric acid with more then 3%. If you have a business you are not involved, but it can be that you need permits and some documentation. For private persons it will be more complicated, because even if the regulation suggests that should be permits for private people to get higher concentrations, many governments decided that there is no need for permits. As a result of this decision the use and even the possession of this chemicals are illegal and can be fined (e.g. in Austria with 500 Euro).
The second issue will be REACH and this will target all people, but mostly people with a own business and/or people who make workshops specially gum printing.
The reason for that is that the dichromates (sodium and potassium) are classified as SVHC (substance of very high concern) and the use of it will be forbidden or strongly regulated and only approved after authorization from ECHA (European Chemicals Agency).
The sunset date for potassium dichromate is 21/09/2017. After this date “the placing on the market and the use of the substance shall be prohibited unless an authorisation is granted”.
Here is a pdf which describes the problem.
Additionally there is a other issue what will affect mostly the private end user: The “COMMISSION REGULATION (EC) No 552/2009” determined that Carcinogenic, mutagenic, reprotoxic (CMR) substances should not be be placed on the market, or used, as substances, as constituents of other substances, or in mixtures for supply to the general public and should be restricted to professional users see page 20 at http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2009:164:0007:0031:en:PDF
There are more and more chemicals which will be categorised as CMR and regulated through this regulation. This will have the effect, that some kind mixtures e.g. developer can not be sold or shipped to private endusers anymore.