MMR vaccine is recommended routinely for all children at age 12 through 15 months, with a second dose at age 4 through 6 years. The second dose of MMR can be given as early as 4 weeks (28 days) after the first dose and be counted as a valid dose if both doses were given after the child's first birthday.o. A measles-containing vaccine administered before the first birthday should not be counted as part of the series. MMR should be repeated when the child is age 12 through 15 months (12 months if the child remains in an area where disease risk is high).
Employee records may need to be kept for certain time periods based on labor laws, but for tax records you'll want to keep Form W-2 records for at least 5 to 7 years. Documentation used to fill out your tax returns should be kept for at least 5 to 7 years in case of audit.
Depending on the item for which the record pertains, the IRS recommends keeping the records for 2 - 7 years. You can find a more complete table here. The IRS also requires corporations to keep tax documents for anything claimed as depreciation. Depreciation is an income tax deduction businesses can claim for the general wear and tear of company assets. If an item depreciates for seven years, all records pertaining to that item should be kept for those seven years. Regardless of IRS regulations on corporate recordkeeping, it is a good idea to keep and maintain corporate records for your own usage.