Dates by which permits are required

Dates by which permits are required. (1) Existing sources. Except as provided in s. 285.62 (8) , Stats., no stationary source which is required to obtain an operation permit under s. 285.60 (2) (a) , Stats., and this chapter may operate after the date specified for that source in Table 1 of s. NR 407.04 without an operation permit issued by the department. (2) New or modified sources. Except as provided in ss. 285.60 (1) (a) 2. and 285.62 (8) , Stats., no new or modified source which is required to obtain an operation permit under s. 285.60 (1) (b) , Stats., and this chapter may operate without an operation permit issued by the department.