in the case of a conviction of a violation of a state law, or attorney for a locality or for the Commonwealth in the event of a conviction of a violation of a local law or ordinance, or upon its own motion, may require him to show cause why he should not be confined in jail or fined for nonpayment. A show cause proceeding shall not be required prior to issuance of a capias if an order to appear on a date certain in the event of nonpayment was issued pursuant to subsection A of § 19.2-354 and the defendant failed to appear. B. Following the order to show cause or following a capias issued for a defendant's failure to comply with a court order to appear issued pursuant to subsection A of § 19.2-354, unless the defendant shows that his default was not attributable to an intentional refusal to obey the sentence of the court, or not attributable to a failure on his part to make a good faith effort to obtain the necessary funds for payment, or unless the defendant shows that any failure to appear was not attributable to an intentional refusal to obey the order of the court, the court may...impose a fine not to exceed $500.

the fine exceed $250

within the time specified by § 50-2302.05(d)(1) and § 50-2303.05(d)(1), a penalty equal to the amount of the civil fine; (B) In the case of a person receiving a notice of infraction who fails to answer such notice by the close of business on the date set for the hearing or who answers but fails without good cause to appear at such hearing, with respect to infractions under subchapter II of this chapter, a penalty equal to twice the amount of the civil fine and, with respect to infractions under subchapter III of this chapter, a penalty equal to the amount of the civil fine plus $5.