The International Phonetic Association permits (with no limitations or licensing restrictions and at no charge in the form of a license fee or royalties) third parties to use (copy, publicly display, publicly perform, publish/distribute and create derivative works based thereon) the IPA symbols and IPA charts as part of or in products such as books and software/hardware as long as the third party acknowledges the International Phonetic Association as the copyright owner of the International Phonetic Alphabet and the IPA charts.
News:
October 21, 2005, New IPA Symbol for Labiodental Flap
IPA Website
IPA Chart (University of Victoria website)
Interactive IPA Chart (University of Victoria website)
WordPerfect IPA Chart (SIL93 Doulos font required)
Hand drawn IPA Chart 
Word IPA Chart (SIL93 Doulos font required)
IPA KLICK (Hartmut Traunmüller's website)