Can I enter characters with accent marks or other diacritical marks into an ARK/RPS form?
No, unfortunately, you cannot. The ARK/RPS system only recognizes the standard 7-bit ASCII character set. If you do enter ISO 8859-1 (Latin-1) or Unicode characters (UTF-8 or UTF-16), for example, and submit the form, the characters will be stripped or possibly transformed into some form unrecognizable from what you intended.