Here it is:
http://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_048.pdf
It only talks about sprays between 8-14%. This was from December 2010 so maybe they've just passed new laws based on this report...
4. CONCLUSIONS
1. Does SCCS consider the use of Dihydroxyacetone (DHA) in cosmetic products safe for
the consumers when used in a maximum concentration up to 10.0%, taking into account
the data provided?
Based upon the available data, the SCCS is of the opinion that the use of
Dihydroxyacetone as a self-tanning ingredient in cosmetic formulations up to 10% will
not pose a risk to the health of the consumer.
2. DHA may also be used in "spray cabins" in aqueous solutions in concentrations between
8 and 14%. Does the SCCS consider this use and exposure safe for the consumers?
When using DHA in spray cabins in aqueous solutions, exposure via inhalation cannot be
excluded. The exposure may be single (frequency of use less than once per month) or
‘repeated’ (e.g. in extreme cases once per week).
For the single exposure, reference is made to the presented acute inhalation study in
rats, where the animals were exposed to DHA aerosols during 4 hours to the limit dose
level of 5000 mg DHA/m³. No effects were observed on the clinical level or on
macroscopic findings related to the respiratory tract or other organs.
As far as repeated exposure to DHA-containing self-tanning formulations is concerned,
the potential systemic exposure through inhalation appears to be negligible compared to
the calculated worst-case dermal exposure levels. The calculated overall systemic
exposure level generates a sufficiently high Margin of Safety.
Therefore, based upon the available information, the SCCS considers that the use of
Dihydroxyacetone as a self-tanning ingredient in spray cabins up to 14% will not pose a
risk to the health of the consumer.
3. Does the SCCS have any further scientific concerns regarding the use of DHA in a spray
solution as a tanning agent without UV?
In light of the answer to question 2, the SCCS has no further concerns.