a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS127 [Section] 9.1 [Statement text] 
The Consumer indicates to the Portlet the preferred character encoding, using the markupCharacterSets field of the MarkupParams structure. It is up to the Portlet to generate markup that complies with this encoding. The Portlet is allowed to generate its markup in either the UTF-8 or UTF-16 character set encodings if it is unable to generate the requested character set. If it is unable to generate markup in any of these character sets, the Portlet MUST return a fault message to the Consumer.
WSRP v2.0 Specification
Statement text