# Requirements for Preparation, Adoption, and Submittal of Implementation Plans
**CFR Correction**
In Title 40 of the Code of Federal Regulations, Parts 50 to 51, revised as of July 1, 2006, in Appendix S to Part 51, on page 483, reinstate paragraph II.A.4(iii) to read as follows:
**Appendix S to Part 51—Emission Offset Interpretative Ruling**
II.* * *
A.* * *
4.* * *
(iii) The fugitive emissions of a stationary source shall not be included in determining for any of the purposes of this ruling whether it is a major stationary source, unless the source belongs to one of the following categories of stationary sources:
( *a* ) Coal cleaning plants (with thermal dryers);
( *b* ) Kraft pulp mills;
( *c* ) Portland cement plants;
( *d* ) Primary zinc smelters;
( *e* ) Iron and steel mills;
( *f* ) Primary aluminum ore reduction plants;
( *g* ) Primary copper smelters;
( *h* ) Municipal incinerators capable of charging more than 250 tons of refuse per day;
( *i* ) Hydrofluoric, sulfuric, or nitric acid plants;
( *j* ) Petroleum refineries;
( *k* ) Lime plants;
( *l* ) Phosphate rock processing plants;
( *m* ) Coke oven batteries;
( *n* ) Sulfur recovery plants;
( *o* ) Carbon black plants (furnace process);
( *p* ) Primary lead smelters;
( *q* ) Fuel conversion plants;
( *r* ) Sintering plants;
( *s* ) Secondary metal production plants;
( *t* ) Chemical process plants;
( *u* ) Fossil-fuel boilers (or combination thereof) totaling more than 250 million British thermal units per hour heat input;
( *v* ) Petroleum storage and transfer units with a total storage capacity exceeding 300,000 barrels;
( *w* ) Taconite ore processing plants;
( *x* ) Glass fiber processing plants;
( *y* ) Charcoal production plants;
( *z* ) Fossil fuel-fired steam electric plants of more than 250 million British thermal units per hour heat input;
( *aa* ) Any other stationary source category which, as of August 7, 1980, is being regulated under section 111 or 112 of the Act.