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If you need to cover child care expenses at a conference, you can access up to $1,000 per year by using your Child Care Subsidy provided by the Graduate School. You may access these funds through the form the Grad School distributes via email at the beginning of each school year.
If you are attending a flagship conference such as CCCC or RSA, they may offer a graduate student travel grant competition if they have sufficient funding to do so. Keep an eye on their websites and relevant listservs for information on availability.