Modifies provisions relating to withholding tax returns

Based solely on the provided context, a summary of SB 1429 cannot be generated. The bill's title and official abstract ("Modifies provisions relating to withholding tax returns") are too vague and lack specific details about the changes, who is affected, or the key mechanisms. No concrete policy changes, affected groups, or provisions are described in the available information. Without additional details from the bill text or a more specific abstract, a factual summary meeting the requested criteria is not possible.