The California Secretary of State’s web page now lists the Reform Party as a political body. A political body is entitled to have election officials tally how many registered voters it has. The next California tally will be in April, followed by one in May, and then one in July. If any of those three tallies show that the Reform Party has as many as 60,000 members (approximately) the party will be qualified for the November 2016 ballot for President.
The Reform Party had 16,377 registrants in California in early 2014, but that number has probably declined since then.